Want To Be A Lab Animal Technician? You Gotta Pass This Test

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  • 1/124 Questions

    Enviornmental  factors that may affect breeding  programs include light cycle , temperature  humidity and noise

    • True
    • False
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About This Quiz

Lab animal technicians study and care for a variety of animals involved in research programs. They are responsible for providing basic care to lab animals such as mice, rats, reptiles, dogs, and primates.
Want to be a Lab Animal Technician? You gotta pass this test
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Want To Be A Lab Animal Technician? You Gotta Pass This Test - Quiz

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  • 2. 

    The Guide for the Care and Use of Laboratory  Animals ( the Guide )  Provides Basic information  on animal use and is the standard used by the Association  for Assessment and Accreditation of Laboratory animal care , International (AALAC International)

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the Guide for the Care and Use of Laboratory Animals is indeed a document that provides basic information on animal use and is widely recognized as the standard by the Association for Assessment and Accreditation of Laboratory Animal Care, International (AALAC International). This guide is used by researchers, institutions, and regulatory bodies to ensure the ethical and responsible treatment of animals in laboratory settings.

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  • 3. 

    When would you plan to work on a large assignment if you are a fast - paced  morning person ?

    • The first part of the day

    • Delegation

    • Cost Accounting

    • Accurate record keeping

    Correct Answer
    A. The first part of the day
    Explanation
    If someone is a fast-paced morning person, it means they are most productive and focused during the early hours of the day. Therefore, it would be logical for them to plan to work on a large assignment during the first part of the day when they have the most energy and concentration. This would allow them to make the most progress and complete the assignment efficiently.

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  • 4. 

    What should  you do when a task is delegated to you?

    • Make sure you completely understand the instructions

    • Document it for your performance review

    • Make sure the work assignments are evenly distributed

    • Find out if the assignment is in your job description

    Correct Answer
    A. Make sure you completely understand the instructions
    Explanation
    When a task is delegated to you, it is important to make sure you completely understand the instructions. This ensures that you have a clear understanding of what needs to be done and how to do it. By fully understanding the instructions, you can avoid any confusion or mistakes that may arise from misinterpretation. This also allows you to ask any necessary questions or seek clarification if needed. Understanding the instructions is crucial for successfully completing the delegated task and meeting expectations.

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  • 5. 

    For the purpose of artificial insemination, collection of sperm from small rodents is performed by extraction directly from the testes/ epididymis  following euthanasia

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given statement is true. For artificial insemination in small rodents, sperm collection is done by extracting it directly from the testes or epididymis after euthanizing the animal. This method ensures the collection of viable sperm for use in the insemination process.

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  • 6. 

    The correct name for the acronym IACUC is

    • Institutional Animal Care and Use Committee

    • Institutional Annual Costs and Use Committee

    • Institutional Animal Committee and Use Council

    • Informational Animal Care and Use Committee

    Correct Answer
    A. Institutional Animal Care and Use Committee
    Explanation
    The correct answer is "Institutional Animal Care and Use Committee". This is the correct name for the acronym IACUC. The committee is responsible for overseeing and ensuring the ethical treatment and use of animals in research and teaching activities conducted at an institution. They review and approve protocols involving animal research, monitor animal welfare, and ensure compliance with regulations and guidelines.

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  • 7. 

    What may cause cannibalism of newborns ?

    • Disturbing the newborns by staff

    • An inexperienced mother

    • Evercrowding /poor conditions

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Cannibalism of newborns may be caused by disturbing the newborns by staff, an inexperienced mother, or overcrowding/poor conditions. Disturbing the newborns by staff can lead to stress and aggression, causing cannibalistic behavior. An inexperienced mother may not have the necessary skills to properly care for her offspring, leading to cannibalism. Overcrowding and poor conditions can result in increased competition for resources, leading to cannibalistic behavior as a means of survival. Therefore, all of the above factors can contribute to cannibalism of newborns.

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  • 8. 

    What instrument measures electrical activity in the heart ?

    • ECG

    • ETA

    • PMN

    • Sonograph

    Correct Answer
    A. ECG
    Explanation
    An ECG (electrocardiogram) is a medical test that measures the electrical activity of the heart. It is a commonly used instrument to diagnose and monitor various heart conditions. ECG records the electrical signals generated by the heart as it beats, providing valuable information about the heart's rhythm and function. This test involves attaching electrodes to the skin to detect the electrical impulses, and the resulting data is displayed on a monitor or printed on paper for analysis by healthcare professionals.

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  • 9. 

    Which lists routes of injections from fastest absorption  to slowest?

    • IV,IP, IM, SC. IP

    • IM, SC. ID, IV,IP

    • IP, IM, SC, ID, IV,

    • SC, ID, IV, IP, IM

    Correct Answer
    A. IV,IP, IM, SC. IP
    Explanation
    The correct answer is IV, IP, IM, SC. IP. This is because intravenous (IV) injections have the fastest absorption rate as the medication is directly injected into the bloodstream. Intraperitoneal (IP) injections have a slightly slower absorption rate as the medication is injected into the peritoneal cavity. Intramuscular (IM) injections have a slower absorption rate as the medication is injected into the muscle tissue. Subcutaneous (SC) injections have an even slower absorption rate as the medication is injected into the fatty tissue layer beneath the skin. Finally, the second IP in the answer options is likely a typo or error.

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  • 10. 

    Which of the following is a voluntary muscle  contraction ?

    • Blood circulation

    • Limb movement

    • Respiration

    • Digestion

    Correct Answer
    A. Limb movement
    Explanation
    Limb movement is a voluntary muscle contraction because it can be consciously controlled by an individual. Voluntary muscles are under the control of the somatic nervous system, which allows us to move our limbs and perform various physical activities. Blood circulation, respiration, and digestion, on the other hand, are involuntary muscle contractions that occur automatically without conscious effort.

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  • 11. 

    How can you become more productive on the job and make better use of your time ?

    • Time Management

    • Delegation

    • Cost accounting

    • Accurate record keeping

    Correct Answer
    A. Time Management
    Explanation
    Time management is the correct answer because it refers to the practice of organizing and planning one's time effectively in order to be more productive and make better use of time. By setting goals, prioritizing tasks, and scheduling activities, individuals can allocate their time efficiently and avoid wasting time on unimportant or non-essential activities. This allows individuals to focus on important tasks, meet deadlines, and achieve better results in their work. Time management helps individuals to be more productive, reduce stress, and achieve a better work-life balance.

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  • 12. 

    What should you do after you delegate a task to someone else?

    • Observe the person when they are doing the task

    • Check the room log to see if they marked the tasks completed

    • Follow up to be sure it has been completed

    • Leave the person alone and assume they know what they are doing

    Correct Answer
    A. Follow up to be sure it has been completed
    Explanation
    After delegating a task to someone else, it is important to follow up to ensure that it has been completed. This is necessary to ensure that the task was understood correctly, to address any questions or concerns that may have arisen during the process, and to provide any necessary feedback or guidance. Simply assuming that the person knows what they are doing and leaving them alone may lead to misunderstandings or incomplete work. Checking the room log may provide some information, but it is still important to directly communicate and follow up with the person to ensure the task's completion.

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  • 13. 

    What is the difference between genotype and phenotype ?

    • Genotype is the wild type and phenotype is the mutant forms

    • They are the same

    • Genotype is what the genes are , phenotype is what genes are expressed

    • Phenotype is what the genes are , genotype is what genes are expressed

    Correct Answer
    A. Genotype is what the genes are , phenotype is what genes are expressed
    Explanation
    The correct answer explains that genotype refers to the genetic makeup or composition of an organism, while phenotype refers to the observable characteristics or traits that are expressed as a result of the genes. In other words, genotype represents the genes that an organism possesses, while phenotype represents how those genes are expressed and manifest in the organism's physical appearance or behavior.

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  • 14. 

    The three components of a breeding scheme are the foundation colony, the expansion colony, and the production colony ?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because a breeding scheme typically consists of three main components: the foundation colony, the expansion colony, and the production colony. The foundation colony is the initial group of breeding animals that are selected for their desirable traits. The expansion colony is created by breeding the animals from the foundation colony to increase the population size. Finally, the production colony is where the breeding animals are housed to produce offspring for commercial purposes. These three components work together to ensure the success and sustainability of the breeding scheme.

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  • 15. 

    Involuntary  muscles are involved in _______________

    • respiration

    • Digestion

    • Blood circulation

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Involuntary muscles are involved in various bodily functions such as respiration, digestion, and blood circulation. These muscles work automatically without conscious control. The respiratory muscles, like the diaphragm, help in the process of breathing. The muscles in the digestive system aid in the movement and breakdown of food. Additionally, the muscles in the walls of blood vessels help in maintaining blood pressure and circulation. Therefore, all of the above options are correct as involuntary muscles play a role in all these functions.

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  • 16. 

    States that allow the use of pound animals in research frequently have  provisions  which  require  that an impounded  animal be  held at a shelter  for a minimum  of five days  to allow an  owner the opportunity   to reclaim   a lost pet .

    • True

    • False

    Correct Answer
    A. True
    Explanation
    States that allow the use of pound animals in research often have provisions that require impounded animals to be held at a shelter for at least five days. This allows owners the opportunity to reclaim their lost pets.

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  • 17. 

    In what type of procedure is cardiac puncture mostly used ?

    • Bypass surgery

    • Non- survival

    • Biopsy

    • Survival

    Correct Answer
    A. Non- survival
    Explanation
    Cardiac puncture is mostly used in non-survival procedures. This means that the procedure is performed on an animal that is not expected to survive. In non-survival procedures, the animal is euthanized or sacrificed after the procedure is completed. Cardiac puncture involves inserting a needle into the heart to collect blood or administer substances directly into the bloodstream. This procedure is commonly used for research purposes, such as collecting blood samples for analysis or administering drugs in animal studies.

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  • 18. 

    Which of the following represent dominant alleles?

    • Single digit numerals

    • Italics

    • Lower case letters

    • Capital letters

    Correct Answer
    A. Capital letters
    Explanation
    Dominant alleles are the alleles that are expressed in the phenotype when present in either one or two copies. In this context, capital letters represent dominant alleles because they are typically used to denote dominant traits in genetics. Capital letters are commonly used to represent the dominant form of a gene, while lowercase letters are used for the recessive form. Therefore, capital letters are the correct answer as they represent dominant alleles.

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  • 19. 

    What is depreciation ?

    • The additional amount of money it would take to replace equipment or a building over time

    • Loss in the value of equipment and buildings over time

    • The amount of repari that is put into equipment and buildings

    • Loss in the use of equipment and buildings over time

    Correct Answer
    A. Loss in the value of equipment and buildings over time
    Explanation
    Depreciation refers to the loss in the value of equipment and buildings over time. As assets age and are used, they experience wear and tear, obsolescence, and other factors that reduce their value. This reduction in value is known as depreciation. It is important for businesses to account for depreciation when calculating the value of their assets and determining their financial health. By recognizing depreciation, businesses can allocate funds for asset replacement or upgrades in the future.

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  • 20. 

    The primary granting agency through which the United States conducts and supports biomedical research is ______________

    • United States Dept. of Agriculture (USDA0

    • National Institutes of Aging (NIA)

    • National Institutes of Health (NIH)

    • National Science Foundation (NSF)

    Correct Answer
    A. National Institutes of Health (NIH)
    Explanation
    The correct answer is National Institutes of Health (NIH). The NIH is the primary granting agency in the United States for biomedical research. It is responsible for conducting and supporting research in various areas of health and medicine. The NIH funds research projects, provides training and career development opportunities for scientists, and promotes the translation of research findings into medical advancements and public health interventions.

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  • 21. 

    Standard operating Procedures  ( SOPs )  should  only be established for direct animal care  procedures 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Standard Operating Procedures (SOPs) should not only be established for direct animal care procedures. SOPs should also be established for various other aspects of animal care such as record-keeping, cleaning and sanitation, equipment maintenance, and staff training. These procedures ensure consistency, efficiency, and compliance with regulations in all aspects of animal care.

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  • 22. 

    Which  of the following terms is defined as "difficult birth "

    • dysphagia

    • Dystocia

    • Parturition

    • Metritis

    Correct Answer
    A. Dystocia
    Explanation
    Dystocia is the correct answer because it refers to difficult birth. Dysphagia refers to difficulty swallowing, parturition refers to the process of giving birth, and metritis refers to inflammation of the uterus.

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  • 23. 

    How long are assurance records related to grant applications to be maintained ?

    • For the duration of the experiment

    • For the term of the grant

    • At least 3 years , following completion of the activity

    • One year

    Correct Answer
    A. At least 3 years , following completion of the activity
    Explanation
    Assurance records related to grant applications are required to be maintained for at least 3 years following the completion of the activity. This means that after the experiment or project funded by the grant is finished, the assurance records must be retained for an additional 3 years. This is important for accountability and transparency purposes, as it allows for future reference and verification of the grant application process.

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  • 24. 

    What additional knowledge is required to assist in hematology

    • Certification as a veterinary technician

    • A background in clinical diagnostics

    • An understanding of blood cell morphology

    • A bachelors degree in biology

    Correct Answer
    A. An understanding of blood cell morphology
    Explanation
    To assist in hematology, having an understanding of blood cell morphology is crucial. This knowledge allows for the identification and interpretation of different types of blood cells, which is essential in diagnosing and monitoring various blood disorders and diseases. It enables the technician to recognize abnormalities in cell shape, size, and structure, which can provide valuable diagnostic information. Without this understanding, it would be challenging to accurately analyze blood samples and provide appropriate treatment recommendations.

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  • 25. 

    What is the term  for placement of a liquid into the  stomach by using a tube attached to a syringe?

    • Esophageal dosing

    • Bolusing

    • Gavage

    • Intubation

    Correct Answer
    A. Gavage
    Explanation
    Gavage is the term used for the placement of a liquid into the stomach using a tube attached to a syringe. This method is commonly used in medical procedures to administer medication or nutrients directly into the stomach when oral intake is not possible. Esophageal dosing refers to the administration of medication into the esophagus, bolusing refers to the administration of a large amount of fluid quickly, and intubation refers to the insertion of a tube into a body cavity.

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  • 26. 

    What does the epiglottis do ?

    • Protects the vocal cords

    • Prevents food from entering the trachea

    • Filters impurities from the air

    • Carries food to the esophagus

    Correct Answer
    A. Prevents food from entering the trachea
    Explanation
    The epiglottis is a flap of tissue located at the base of the tongue that prevents food from entering the trachea. When we swallow, the epiglottis closes off the opening to the trachea, directing the food towards the esophagus instead. This helps to ensure that food and liquids go down the correct pathway and do not enter the lungs, which could lead to choking or aspiration pneumonia.

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  • 27. 

    Research institutions provide  the Public Health Service with a signed agreement that outlines how the institution complies with all aspects of humane animal care as described in the pHS Policy , This agreement is called the _____________ Assurance

    • Institutional compliance

    • Animal Welfare

    • Humane Care

    • Research Resources

    Correct Answer
    A. Animal Welfare
    Explanation
    Research institutions provide the Public Health Service with a signed agreement that outlines how the institution complies with all aspects of humane animal care as described in the PHS Policy. This agreement is called the Animal Welfare Assurance.

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  • 28. 

    Ferrets, cats, and rabbits are the common laboratory species which are induced ovulators

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Ferrets, cats, and rabbits are indeed common laboratory species that exhibit induced ovulation. This means that these animals release an egg from their ovaries in response to mating or other external stimuli. Unlike humans and some other animals, they do not have a regular menstrual cycle and only ovulate when stimulated. This characteristic makes them suitable for certain types of research studies in the laboratory setting.

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  • 29. 

    What are the three basic components  of the cell?

    • Structure , reproduction, nutrition

    • Membranse , mucleus , cytoplasm

    • Glycoproteins , mucleic acid , organelles

    • Gasses and waste , DNA , Nutrients

    Correct Answer
    A. Membranse , mucleus , cytoplasm
    Explanation
    The correct answer is membranse, nucleus, and cytoplasm. These three components are essential for the functioning of a cell. The cell membrane acts as a protective barrier and regulates the movement of substances in and out of the cell. The nucleus contains the genetic material and controls the cell's activities. The cytoplasm is a gel-like substance that fills the cell and houses various organelles, where important cellular processes occur.

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  • 30. 

    If animals are to  euthanized at the end of the study , the method of euthanasia must be in accordance with the guidelines ( Panel on Euthanasia ) set up by the _________

    • NIH

    • AVMA

    • PHS

    • USDA

    Correct Answer
    A. AVMA
    Explanation
    The correct answer is AVMA because the AVMA (American Veterinary Medical Association) is responsible for setting guidelines on euthanasia methods for animals. They provide guidance on the most humane and ethical ways to euthanize animals, ensuring that the process is carried out in a compassionate and respectful manner. The NIH (National Institutes of Health), PHS (Public Health Service), and USDA (United States Department of Agriculture) may have their own regulations and guidelines for animal research, but they are not specifically focused on euthanasia methods.

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  • 31. 

    The observable or discernible characteristics of an animal are known as the ______________ ?

    • Genotype

    • Taxonomic profile

    • Phylum

    • Phenotype

    Correct Answer
    A. Phenotype
    Explanation
    The observable or discernible characteristics of an animal are known as the phenotype. This includes physical traits such as color, size, and shape, as well as behavioral traits. The phenotype is influenced by the animal's genotype, which is its genetic makeup, but it can also be influenced by environmental factors. The taxonomic profile refers to the classification of an animal into a specific taxonomic group, such as a species or a genus. The phylum is a higher taxonomic rank that groups animals based on certain shared characteristics.

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  • 32. 

    What carries the oxygen in the blood

    • Enzymes

    • Pleural fluid

    • Hemoglobin

    • Plasma

    Correct Answer
    A. Hemoglobin
    Explanation
    Hemoglobin carries the oxygen in the blood. It is a protein found in red blood cells that binds to oxygen molecules in the lungs and transports them to tissues throughout the body. Hemoglobin has a high affinity for oxygen, allowing it to efficiently pick up oxygen in the lungs and release it in areas where it is needed. Without hemoglobin, oxygen would not be able to be transported effectively in the bloodstream, leading to oxygen deprivation in the body's tissues.

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  • 33. 

    The gauge of the needle refers to the

    • Circumference

    • Route of injection

    • Diameter

    • Length

    Correct Answer
    A. Diameter
    Explanation
    The gauge of the needle refers to its diameter. The diameter of the needle is an important factor in determining the size of the needle and its suitability for a specific injection. A smaller gauge needle has a smaller diameter, while a larger gauge needle has a larger diameter. The gauge of the needle affects the flow rate of the injected substance and the level of discomfort experienced by the patient during the injection. Therefore, understanding the gauge of the needle is crucial for healthcare professionals to ensure safe and effective injections.

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  • 34. 

    What is the name of a cell produced at fertilization by the union of sperm and egg?

    • Gamete

    • Zygote

    • Fetus

    • Oocyte

    Correct Answer
    A. Zygote
    Explanation
    A zygote is the cell that is formed when a sperm fertilizes an egg during the process of fertilization. It is the earliest stage of development and contains the complete set of genetic material from both the sperm and the egg. The zygote will then undergo cell division and development to eventually form an embryo. Gametes are the reproductive cells (sperm and egg) that unite during fertilization, but the zygote is the specific cell that is formed as a result of this union. Fetus refers to the later stages of development in the womb, and oocyte is an immature egg cell.

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  • 35. 

    What  hormone is scereted by the ovaries and aids the development of the female  reproductive system ?

    • Progesterone

    • Estrogen

    • Oxytosin

    • Androgen

    Correct Answer
    A. Estrogen
    Explanation
    Estrogen is the hormone secreted by the ovaries that aids in the development of the female reproductive system. It is responsible for the growth of the uterus, fallopian tubes, and vagina, as well as the development of secondary sexual characteristics such as breast development and the distribution of body fat. Estrogen also plays a crucial role in regulating the menstrual cycle and preparing the body for pregnancy.

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  • 36. 

    What agency is responsible  for determining whether new medical devices ( like artificial joints and cardiac pacemakers ) are safe and effective before they are approved for sale in the united  states

    • Environmental Protection Agency

    • United States Department of Agriculture

    • Food and Drug Administration

    • National Institutes of Health

    Correct Answer
    A. Food and Drug Administration
    Explanation
    The Food and Drug Administration (FDA) is responsible for determining whether new medical devices, such as artificial joints and cardiac pacemakers, are safe and effective before they are approved for sale in the United States. The FDA is the regulatory agency that oversees the safety and efficacy of drugs, medical devices, food, cosmetics, and other products. They conduct thorough evaluations and assessments to ensure that these medical devices meet the necessary standards before they can be sold in the market.

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  • 37. 

    The most desirable site for an IM injection is _____________

    • A large muscle mass

    • The back muscles

    • The forelimb

    • The hind limb

    Correct Answer
    A. A large muscle mass
    Explanation
    The most desirable site for an IM injection is a large muscle mass because it allows for better absorption and distribution of the medication. Large muscle masses have a greater blood supply, which helps in the faster and more efficient delivery of the injected medication into the bloodstream. Additionally, injecting into a large muscle mass reduces the risk of hitting nerves or blood vessels, minimizing the chances of complications.

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  • 38. 

    What is the correct order  of vertebral regions from head to the tail

    • Cervical , thoracic, lumbar . sacral, coccygeal

    • Thoracic , sacral, lumbar, cervical. coccygeal

    • Coccygeal, sacral, lumbar, thoracic , cervical

    • Cervical. coccygeal , lumbar. sacral, thoracic

    Correct Answer
    A. Cervical , thoracic, lumbar . sacral, coccygeal
    Explanation
    The correct order of vertebral regions from head to tail is cervical, thoracic, lumbar, sacral, coccygeal. This order follows the natural progression of the spine from the neck to the lower back and pelvis. The cervical region refers to the vertebrae in the neck, followed by the thoracic region in the upper back, the lumbar region in the lower back, the sacral region in the pelvis, and finally the coccygeal region at the base of the spine.

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  • 39. 

    What species normally has cloudy urine  ?

    • Rabbit

    • Horse

    • Ferret

    • Gerbil

    Correct Answer
    A. Rabbit
    Explanation
    Rabbits normally have cloudy urine.

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  • 40. 

    Typically at lest 50%  of submitted proposals for grant money are funded

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement contradicts the reality of grant funding. It claims that at least 50% of submitted proposals are funded, which is not true. In reality, the competition for grant money is usually fierce, and only a small percentage of proposals receive funding. Therefore, the correct answer is false.

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  • 41. 

    A typical grant provides money for a ___________ year period

    • Four

    • Three

    • One

    • Two

    Correct Answer
    A. Three
    Explanation
    A typical grant provides money for a three-year period. This means that the grant recipient will receive funding for a duration of three years.

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  • 42. 

    The dermis is not living tissue

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The dermis is actually living tissue. It is the second layer of the skin, located beneath the epidermis. The dermis contains various structures such as blood vessels, hair follicles, sweat glands, and nerves. It provides support and nourishment to the skin, and plays a crucial role in regulating body temperature. Additionally, the dermis is responsible for giving the skin its strength, elasticity, and flexibility. Therefore, the statement that the dermis is not living tissue is false.

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  • 43. 

    Nutrient absorption  occurs in the __________________________

    • a small intestine

    • Large intestine

    • Rumen

    • Cecum

    Correct Answer
    A. a small intestine
    Explanation
    Nutrient absorption occurs in the small intestine. This is where the majority of digestion takes place and where nutrients are broken down into smaller molecules that can be absorbed into the bloodstream. The small intestine is lined with tiny finger-like projections called villi, which increase the surface area for absorption. These villi contain specialized cells that transport nutrients into the bloodstream for use by the body. The large intestine, rumen, and cecum primarily function in the absorption of water and electrolytes, rather than nutrients.

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  • 44. 

     Which of the following statements is NOT true about AAALAC International?

    • It provides a mechanism for peer evaluation of animal care and use programs

    • It requires annual reports from its accredited facilities

    • It conducts site visits every 3 years

    • It is a government - sponsored agency

    Correct Answer
    A. It is a government - sponsored agency
    Explanation
    AAALAC International is not a government-sponsored agency. It is an independent, nonprofit organization that provides a mechanism for peer evaluation of animal care and use programs. It requires annual reports from its accredited facilities and conducts site visits every three years to ensure compliance with its standards.

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  • 45. 

    For the  purpose of artificial insemination, collection of sperm form small rodents is  performed by extraction directly from the testes / epididymis  following euthanasia

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because for artificial insemination, the collection of sperm from small rodents is indeed performed by extracting it directly from the testes or epididymis after the animal has been euthanized. This method ensures that the highest quality and most viable sperm is obtained for the insemination process.

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  • 46. 

    Sexual reproduction is controlled by ______________________

    • Chemicals in the body

    • Pituitary gland and gonads

    • Hormones

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Sexual reproduction is a complex process that involves the coordination of various factors in the body. Hormones play a crucial role in controlling sexual reproduction by regulating the development and function of the reproductive organs, as well as the production of gametes. The pituitary gland and gonads, such as the ovaries and testes, are major sources of these hormones. Additionally, chemicals in the body also contribute to the regulation of sexual reproduction. Therefore, all of the given options - chemicals in the body, pituitary gland and gonads, and hormones - are correct explanations for the control of sexual reproduction.

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  • 47. 

    When does a recessive gene usually express?

    • When only one chromosome is present

    • When 2 recessive alleles are present

    • When there is 1 recessive and 1 dominant allele

    • When the 2 alleles are the same

    Correct Answer
    A. When 2 recessive alleles are present
    Explanation
    A recessive gene usually expresses when 2 recessive alleles are present. This means that both copies of the gene are recessive, and there are no dominant alleles present to mask the expression of the recessive trait. In this case, the recessive trait will be visible or expressed in the individual's phenotype.

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  • 48. 

    Which part of the mouse model BALB/c StCrl p GF (F83)  is the strain symbol ?

    • StCrl

    • (F83)

    • GF

    • BALB

    Correct Answer
    A. BALB
    Explanation
    The strain symbol in the mouse model BALB/c StCrl p GF (F83) is BALB.

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  • 49. 

    What color is a mouse with the genotype B/b

    • Black

    • Agouti

    • Brown

    • Brindle

    Correct Answer
    A. Black
    Explanation
    The genotype B/b indicates that the mouse has one dominant allele (B) for black fur color and one recessive allele (b) for brown fur color. Since black is dominant over brown, the mouse will have black fur.

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Quiz Review Timeline (Updated): Oct 13, 2023 +

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  • Current Version
  • Oct 13, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2009
    Quiz Created by
    Bionetics

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