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55 Questions | Total Attempts: 27

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Genetics Quizzes & Trivia

Freshman level biology based on genetics


Questions and Answers
  • 1. 
    Most of the variation in populations that natural selection operates on today would come from _________ and __________.
    • A. 

      Random combination of gametes, independent assortment of chromosomes

    • B. 

      Mutations, random combination of gametes

    • C. 

      Independent assortment of chromosomes, mutations

    • D. 

      Immigration, mutations

  • 2. 
    Alleles that have never been in a population of animals or plants, but all of a sudden appears would likely be due to or caused by __________.
    • A. 

      Random combination of gametes

    • B. 

      Independent assortment of chromosomes

    • C. 

      Mutations

  • 3. 
    The incorrect theory that "organisms can modify their bodies through use or disuse of parts and that these modifications can be passed on to their offspring" was formulated by ________.
    • A. 

      Hutton

    • B. 

      Drawin

    • C. 

      Lamark

    • D. 

      Lyell

  • 4. 
    The breeding of domesticated animals and plants would be an example of  ____________
    • A. 

      Natural selection

    • B. 

      Genetic drift

    • C. 

      Artificial mutations

    • D. 

      Isolation

    • E. 

      Artificial selection

  • 5. 
    That plants and animals change over time or that evolution does occur is illustrated by 
    • A. 

      Breeding of domesticated animals

    • B. 

      Fossil record

    • C. 

      Biogeography

    • D. 

      Comparative anatomy and embryology

    • E. 

      All of these

  • 6. 
    Who proposed the concept of natural selection, did not understand genetics, and proposed his own theory of pangenesis.
    • A. 

      Malthus

    • B. 

      Lyell

    • C. 

      Haeckel

    • D. 

      Cuvier

    • E. 

      None of these

  • 7. 
    A temporary pond is a very unstable environment as is the ocean. That such ponds today are similar to those in TRIASSIC time could be explained by views of 
    • A. 

      Darwin and Lamark

    • B. 

      Lyell and Haeckel

    • C. 

      Lyell and Hutton

  • 8. 
    Evolution of animals and plants is best understood by changes in allele frequencies of  
    • A. 

      Individuals

    • B. 

      Populations

    • C. 

      Both a and b

  • 9. 
    A mutation in the DNA occurs such that adenine is substituted by guanine. this would be called a __________ mutation
    • A. 

      Chromosomal

    • B. 

      Point

    • C. 

      Deletion

    • D. 

      Inversion

    • E. 

      Duplication

  • 10. 
    Appendages/limbs of dogs , humans, birds, and bats have many similar bones
    • A. 

      True

    • B. 

      False

  • 11. 
    Boa constictors have tiny pelvic girdles and leg bones within their bodies. because these structures are nonfunctional "evolutionary baggage" they are called _________characters
    • A. 

      Convergent

    • B. 

      Analogous

    • C. 

      Vestigal

  • 12. 
    Early in development mammals, birds, reptiles and fish all have similar genes that are turned on but as they grow other or different genes become turned on to cause them to become very different. thus similarities disappear.
    • A. 

      True

    • B. 

      False

  • 13. 
    Populations grow exponentially/geometrically, but are limited by food, space, predators and disease. the less successful are usually eliminated.
    • A. 

      True

    • B. 

      False

  • 14. 
    Non-dysjunction occurs mostly during mitosis rather than meiosis
    • A. 

      True

    • B. 

      False

  • 15. 
    Individual humans that have th same mistake at the same nucleotide of the haplotype are usually related. this is called hot spot mutation.
    • A. 

      True

    • B. 

      False

  • 16. 
    Human baby size is an example of ____________, while large turkey breasts are an example of ___________.
    • A. 

      Directional selection, disruptive selection

    • B. 

      Stabilizing selection, directional selection

    • C. 

      Disruptive selection, stabilizing selection

    • D. 

      Directional for both.

  • 17. 
    Eupolyploids have a full set of extra chromosomes whereas an aneupolyploid has only one extra chromosome/
    • A. 

      True

    • B. 

      False

  • 18. 
    A gene that has many different copies in a chromosome would be an example of ________, while a loss of a gene would be a ___________.
    • A. 

      Duplication, inversion

    • B. 

      Deletion, duplication

    • C. 

      Translocation to another chromosome

    • D. 

      Duplication, deletion

    • E. 

      None of these

  • 19. 
    Nature selects _________ not ___________.
    • A. 

      Neotypes, genotypes

    • B. 

      Genotypes, phenotypes

    • C. 

      Phenotypes, genotypes

  • 20. 
    Benjamin Franklin (1755) stated "There is in short, no bound to the prolific nature of plants and animalsm but what is made by their crowding and interfering with each other means of subsistence" Franklin's views were similar to those of _____, but what occurred earlier.
    • A. 

      Darwin

    • B. 

      Lyell

    • C. 

      Malthus

  • 21. 
    Genetic information flows according to what sequence?
    • A. 

      DNA ---->MRNA--->PROTIENS-->PHENOTYPIC CHARACTERISTICS

    • B. 

      MRNA--->DNA-->PROTEINS-->PHENOTYPIC CHARACTERISTICS

    • C. 

      PROTIENS-->DNA-->MRNA-->PHENOTYPIC CHARACTERISTICS

  • 22. 
    Natural selection can only act upon a certain trait if the trait is 
    • A. 

      Inheritable

    • B. 

      Behavorial

    • C. 

      Favorable

  • 23. 
    The intense selection for average sized snake eggs over both larger and smaller eggs is an example of  __________ selection
    • A. 

      Directive

    • B. 

      Disruptive

    • C. 

      Stabilizing

  • 24. 
    Which of the following statements about mutations is true
    • A. 

      Mutations have no effect on the survival and reproduction of an organism

    • B. 

      Mutations are caused by natural selection

    • C. 

      Mutation occurs at random and may be good, bad, or have no effect

  • 25. 
    During a storm a small flock of sparrows were driven out to sea. the establishment of a new population of birds on an island where none had previously existed is an example of 
    • A. 

      Natural selection

    • B. 

      Selection mutation

    • C. 

      Founders effect