This Quiz Is To Cater Week Without Wall Requirement For The Cell Reproduction Lecture.

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  • 1/32 Questions

    Both youtube video showed the same incident. The incident was

    • Fall from the staircase
    • Hit by the ball
    • Fall and get hurt
    • Get cut from the knife
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About This Quiz

This quiz assesses knowledge on cell reproduction, focusing on mitosis, chromosome characteristics, and interphase stages. It is designed for the Week Without Wall, enhancing understanding of cell biology crucial for academic progression in biological sciences.

This Quiz Is To Cater Week Without Wall Requirement For The Cell Reproduction Lecture. - Quiz

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  • 2. 

    Which of the following FALSE of mitosis?

    • Growth

    • Cell replacement

    • Asexual reproduction

    • Gamete production

    • All of the above are false

    Correct Answer
    A. Gamete production
    Explanation
    Gamete production is the process of producing specialized cells (sperm and eggs) for sexual reproduction, which is not a function of mitosis. Mitosis is the process of cell division that leads to growth, cell replacement, and asexual reproduction. Therefore, the correct answer is gamete production, as it is false for mitosis.

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  • 3. 

    Apoptosis is a programmed of

    • Cell repair.

    • Cell resting state.

    • Dividing of cytoplasm.

    • Destruct of its own cell.

    Correct Answer
    A. Destruct of its own cell.
    Explanation
    Apoptosis is a programmed process in which a cell undergoes self-destruction. It is a natural mechanism that occurs in multicellular organisms to eliminate damaged, infected, or unnecessary cells. During apoptosis, the cell activates a series of internal signals that lead to its own dismantling and subsequent removal by immune cells. This process is crucial for maintaining tissue homeostasis and preventing the accumulation of abnormal or potentially harmful cells. Therefore, the correct answer is "destruct of its own cell."

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  • 4. 

    Which of the following FALSE of chromosome?

    • It consists of DNA

    • It is in duplicated form for mitosis preparation

    • Each chromosome and its copy stay attached to each other as sister chromatids

    • Chromosomes always appear in odd numbers.

    Correct Answer
    A. Chromosomes always appear in odd numbers.
    Explanation
    The given statement "Chromosomes always appear in odd numbers" is false. Chromosomes can appear in both even and odd numbers in a cell. The number of chromosomes in a cell varies among different organisms. For example, humans have 46 chromosomes, which is an even number. Therefore, the statement is incorrect.

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  • 5. 

    Chiasmata formation takes place during

    • Prophase I.

    • Anaphase I.

    • Metaphase I.

    • Telophase I.

    Correct Answer
    A. Prophase I.
    Explanation
    Chiasmata formation refers to the crossing over of genetic material between homologous chromosomes during meiosis. This process occurs during Prophase I, specifically during the pachytene stage. During Prophase I, the homologous chromosomes pair up and exchange genetic material, resulting in genetic recombination and increased genetic variation. Therefore, the correct answer is Prophase I.

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  • 6. 

    1. Interphase consists of ________ stages.

    • Two

    • Five

    • Four

    • Three

    Correct Answer
    A. Three
    Explanation
    Interphase consists of three stages. This is because interphase is the longest phase in the cell cycle and it prepares the cell for division. The three stages of interphase are G1 (Gap 1), S (Synthesis), and G2 (Gap 2). During G1, the cell grows and carries out its normal functions. In the S phase, DNA replication occurs, where the cell's genetic material is duplicated. Lastly, in G2, the cell continues to grow and prepare for cell division. Therefore, interphase consists of these three stages.

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  • 7. 

    During which of the following periods of the cell cycle is the cell not dividing?

    • Meiosis

    • Telophase

    • Interphase

    • Cytokinesis.

    • None of the above statements

    Correct Answer
    A. Interphase
    Explanation
    Interphase is the period in the cell cycle when the cell is not dividing. It is the longest phase and consists of three stages: G1, S, and G2. During this time, the cell carries out its normal functions, grows in size, and replicates its DNA in preparation for cell division. Therefore, interphase is the correct answer as it is the period when the cell is not actively dividing.

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  • 8. 

    At _______________ the chromosomes are synthesis and duplicated.

    • S phase

    • G1 phase

    • G2 phase

    • Prophase

    Correct Answer
    A. S phase
    Explanation
    During the S phase of the cell cycle, chromosomes undergo synthesis and duplication. This is the phase where DNA replication occurs, resulting in the formation of identical sister chromatids. The chromosomes are copied in preparation for cell division. This phase is crucial for the accurate transmission of genetic information to daughter cells. The S phase is followed by the G2 phase, where the cell prepares for mitosis, ensuring that the duplicated chromosomes are ready for segregation during cell division.

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  • 9. 

    From the youtube video, the girls are practising

    • Netball.

    • Futsal.

    • Football

    • Dodge ball.

    Correct Answer
    A. Futsal.
    Explanation
    Based on the information given in the YouTube video, the girls are practicing futsal.

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  • 10. 

    The cell cycle has many checkpoints to ensure the cell is ready for division. Which of the following can occur if a cell skips cell cycle checkpoints?

    • The cell can become cancerous.

    • The cell can have inhibited growth.

    • The cell can grow in size, but never divide.

    • The cell can divide into three daughter cells instead of two.

    Correct Answer
    A. The cell can become cancerous.
    Explanation
    If a cell skips cell cycle checkpoints, it can lead to uncontrolled cell division and the development of cancer. The checkpoints in the cell cycle are important for ensuring that the cell has properly replicated its DNA, repaired any damage, and is ready for division. Skipping these checkpoints can allow for the proliferation of cells with genetic abnormalities or mutations, which can lead to the formation of tumors and the development of cancer.

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  • 11. 

    In a cell cycle, G1 phase is where the

    • Cleavage furrow happen

    • Chromosomes are dividing.

    • Chromosomes are duplicated.

    • Chromosomes are in single stranded.

    Correct Answer
    A. Chromosomes are in single stranded.
  • 12. 

    From the youtube video, Faiz try to send the_______ to Madam Roz.

    • Lab report

    • Course plan

    • Lab manual

    • Medical certificate.

    • None of the above

    Correct Answer
    A. None of the above
  • 13. 

    Which of the following is FALSE of telophase?

    • The nucleoli disappear.

    • Chromosomes reach the cell poles

    • Chromosomes begin to decondense.

    • Nuclear envelope is re-assembled around each set of chromatids, the nucleoli reappear.

    • All the above statements are false.

    Correct Answer
    A. The nucleoli disappear.
    Explanation
    During telophase, the nucleoli do not disappear. Instead, they reappear as the nuclear envelope is re-assembled around each set of chromatids. The other statements are true: chromosomes reach the cell poles, chromosomes begin to decondense, and the nuclear envelope is re-assembled around each set of chromatids.

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  • 14. 

    Which of the following is FALSE of metaphase?

    • Nuclear envelope starts to disappear.

    • Chromosomes are maximally condensed.

    • All chromosomes are lined up at the spindle equator.

    • Spindle microtubules become attached to the two sister chromatids of each chromosome.

    • All the above statements are false.

    Correct Answer
    A. Nuclear envelope starts to disappear.
    Explanation
    During metaphase, chromosomes are indeed maximally condensed and lined up at the spindle equator. Additionally, spindle microtubules become attached to the two sister chromatids of each chromosome. However, the nuclear envelope remains intact during metaphase and does not start to disappear until later during mitosis, specifically during prometaphase. Therefore, the statement "Nuclear envelope starts to disappear" is false.

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  • 15. 

    During which of the following phases will a human somatic cell contain the least amount of DNA?

    • G1 phase.

    • G2 phase

    • Prophase

    • Metaphase

    • None of the above

    Correct Answer
    A. G1 phase.
    Explanation
    During the G1 phase, a human somatic cell will contain the least amount of DNA. This is because the G1 phase is the first phase of the cell cycle, where the cell grows and prepares for DNA replication. At this stage, the cell has not yet begun the process of DNA synthesis, so the amount of DNA present in the cell is at its lowest. In contrast, during the G2 phase, the cell has already replicated its DNA and is preparing for cell division, resulting in an increased amount of DNA. Prophase and metaphase are stages of mitosis where the DNA is condensed and organized, so the amount of DNA is higher compared to the G1 phase. Therefore, the correct answer is G1 phase.

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  • 16. 

    Which of the following is NOT the contribution factor of variation among off spring?

    • Crossing over during prophase I

    • Random combination of gametes at fertilization.

    • Random movement of chromosomes at anaphase I

    • Random alignment of chromosomes at metaphase I

    • None of the above statements

    Correct Answer
    A. Random movement of chromosomes at anaphase I
    Explanation
    Random movement of chromosomes at anaphase I is not a contribution factor of variation among offspring. Anaphase I is the stage of meiosis where homologous chromosomes separate and move to opposite poles of the cell. This ensures that each daughter cell receives a random assortment of chromosomes. However, the movement of chromosomes during anaphase I is not random, but rather guided by the spindle fibers. The other options listed, such as crossing over during prophase I, random combination of gametes at fertilization, and random alignment of chromosomes at metaphase I, all contribute to genetic variation by introducing new combinations of alleles and ensuring each offspring has a unique set of genetic information.

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  • 17. 

    Histones, molecules that package DNA into nucleosomes, are mostly made up of 

    • Fatty acids.

    • Amino acids.

    • Nucleotides.

    • Monosaccharides.

    Correct Answer
    A. Amino acids.
    Explanation
    Histones are proteins that help package DNA into nucleosomes, which are the basic units of DNA organization in the cell. Proteins are made up of amino acids, not fatty acids, nucleotides, or monosaccharides. Therefore, the correct answer is amino acids.

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  • 18. 

    During telophase I, the

    • Chromosomes arrive at opposite poles, then the cytoplasm divides to produce two diploid cells.

    • Cytoplasm divides to produce two haploid cells before the chromosomes arrive at opposite poles.

    • Chromosomes arrive at opposite poles, then the cytoplasm divides to produce two haploid cells.

    • Chromosomes de-condensed and arrive at opposite poles, then the cytoplasm divides to produce two haploid cells.

    Correct Answer
    A. Chromosomes arrive at opposite poles, then the cytoplasm divides to produce two haploid cells.
    Explanation
    During telophase I, the chromosomes arrive at opposite poles, indicating the completion of the first phase of meiosis. After this, the cytoplasm divides, resulting in the formation of two haploid cells. This process is essential for the production of gametes and ensures that each resulting cell has a single set of chromosomes, making them haploid. The de-condensation of chromosomes occurs during interphase, which is a separate stage of the cell cycle. Therefore, the correct answer is that the chromosomes arrive at opposite poles, and then the cytoplasm divides to produce two haploid cells.

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  • 19. 

    Replication of centriole occurs in

    • Prophase.

    • Anaphase.

    • Interphase.

    • Metaphase.

    Correct Answer
    A. Interphase.
    Explanation
    During interphase, the cell undergoes various processes to prepare for cell division. This includes the replication of centrioles, which are essential for the formation of the spindle fibers involved in cell division. Replication of centrioles occurs during the S phase of interphase, where the DNA is also replicated. Therefore, interphase is the correct answer as it is the phase where centriole replication takes place.

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  • 20. 

    Which of the following is TRUE of chromosome number?

    • Chromosome number in somatic cell is haploid.

    • Somatic cell has two of each type of chromosome.

    • Chromosome in gametes number is diploid.

    • A gamete consists both of each chromosome type

    Correct Answer
    A. Somatic cell has two of each type of chromosome.
    Explanation
    The correct answer is that a somatic cell has two of each type of chromosome. This is because somatic cells are diploid, meaning they have two sets of chromosomes, one inherited from each parent. In contrast, gametes (sperm and egg cells) are haploid, meaning they only have one set of chromosomes. This is necessary for sexual reproduction, as when the gametes combine during fertilization, the resulting zygote will have the correct number of chromosomes.

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  • 21. 

    At anaphase I, the

    • Kinetochores are split, and the sister chromatids are pulled toward the poles by centromeres.

    • Centromeres are split, and then the kinetochore are pulled toward the poles by sister chromatids.

    • Centromeres are split, and then the sister chromatids are pulled toward the poles by kinetochore microtubules.

    • Sister chromatids are split by kinetochores, centromeres are pulled toward the poles by kinetochore microtubules.

    Correct Answer
    A. Centromeres are split, and then the sister chromatids are pulled toward the poles by kinetochore microtubules.
    Explanation
    At anaphase I of meiosis, the centromeres, which hold the sister chromatids together, are split. This allows the sister chromatids to separate and be pulled towards opposite poles of the cell. The pulling force is exerted by the kinetochore microtubules, which are attached to the kinetochore proteins located at the centromeres. Therefore, the correct answer is that centromeres are split, and then the sister chromatids are pulled toward the poles by kinetochore microtubules.

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  • 22. 

    The protein complex with DNA producing the “beads on a string” or nucleosome are called

    • Kinases.

    • Histones.

    • Proteases.

    • spindle fibers.

    Correct Answer
    A. Histones.
    Explanation
    Histones are proteins that play a crucial role in DNA packaging and organization. They form a complex with DNA, known as the nucleosome, which resembles "beads on a string" structure. This complex helps in compacting the DNA and regulates gene expression. Kinases, proteases, and spindle fibers are unrelated to the formation of nucleosomes and DNA packaging.

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  • 23. 

    Crossing over occurs between

    • Two daughter nuclei.

    • Two different bivalents.

    • Sister chromatids of bivalents.

    • Non sister chromatids of bivalents.

    Correct Answer
    A. Non sister chromatids of bivalents.
    Explanation
    Crossing over occurs between non sister chromatids of bivalents. Crossing over is a process that happens during meiosis, specifically during prophase I. It involves the exchange of genetic material between homologous chromosomes. Non sister chromatids of bivalents refer to the chromatids of the homologous chromosomes that are not identical. This exchange of genetic material results in genetic recombination, leading to genetic diversity among offspring.

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  • 24. 

    During interphase,

    • Cell starts to divide.

    • Number of cytoplasmic components doubles.

    • Chromosome remain in single stranded.

    • The chromosomes start to condense.

    Correct Answer
    A. Number of cytoplasmic components doubles.
    Explanation
    During interphase, the cell undergoes various processes in preparation for division. One of these processes is the doubling of cytoplasmic components. This is important because when the cell divides, each resulting daughter cell needs to have a sufficient amount of cytoplasmic components to carry out its functions. Therefore, the doubling of cytoplasmic components ensures that each daughter cell will have an adequate amount of cellular machinery to function properly.

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  • 25. 

    Which of the following is FALSE of prophase?

    • New microtubules are assembled

    • Chromosomes start to duplicated

    • Nuclear envelope starts to break up

    • One centriole pair is moved toward opposite pole of spindle

    • None of the above

    Correct Answer
    A. Chromosomes start to duplicated
    Explanation
    Prophase is the first stage of mitosis, during which the chromosomes condense and become visible. However, it is important to note that prophase is not the stage where chromosomes start to duplicate. Chromosome duplication occurs during the S phase of interphase, which precedes mitosis. Therefore, the statement "Chromosomes start to duplicate" is false for prophase.

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  • 26. 

    The cell synthesizes the proteins that will be needed for cell division at

    • Prophase

    • S phase

    • G1 phase

    • G2 phase

    Correct Answer
    A. G2 phase
    Explanation
    During the G2 phase of the cell cycle, the cell prepares for cell division by synthesizing the proteins that will be needed for the process. This phase follows the S phase, where DNA replication occurs, and precedes the actual division of the cell. The proteins synthesized during the G2 phase are crucial for various processes involved in cell division, such as the formation of the mitotic spindle and the regulation of cell cycle checkpoints. Therefore, G2 phase is the correct answer as it is the specific phase where the cell synthesizes the proteins required for cell division.

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  • 27. 

    Which of the following is FALSE of metaphase II?

    • The centromeres are ready to divide.

    • Chromosomes divided from the diploid to the haploid number of chromosome.

    • Sister chromatids divide at the centromeres and the resulting each chromosome moves toward opposite poles of the cell.

    • Homologous chromosomes divide and the resulting each chromosome moves toward opposite poles of the cell.

    • None of the above

    Correct Answer
    A. Homologous chromosomes divide and the resulting each chromosome moves toward opposite poles of the cell.
    Explanation
    In metaphase II, sister chromatids divide at the centromeres and the resulting each chromosome moves toward opposite poles of the cell. Homologous chromosomes do not divide in metaphase II.

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  • 28. 

    During Prophase II,

    • Crossing over starts to take place

    • The chromosomes number remain as haploid.

    • Two homologous sister chromatid are pairing up.

    • The duplicated chromosomes have been divided into single chromosomes.

    Correct Answer
    A. The chromosomes number remain as haploid.
    Explanation
    During Prophase II of meiosis, the chromosomes number remains haploid. This is because in Prophase II, the cells have already undergone DNA replication in the previous interphase, resulting in each chromosome consisting of two sister chromatids. However, unlike in Prophase I where homologous chromosomes pair up, in Prophase II, the sister chromatids of each chromosome align themselves along the equator of the cell. Therefore, the number of chromosomes remains haploid, meaning half the number of chromosomes as compared to the original diploid cell.

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  • 29. 

    The checkpoint at the end of which phase is considered the most important aspect of cell cycle regulation, as any potential problems with it can lead to cancer?

    • G1 phase

    • G2 phase

    • S phase

    • M phase

    Correct Answer
    A. G2 phase
    Explanation
    The G2 phase is considered the most important aspect of cell cycle regulation because it serves as a checkpoint before the cell enters the M phase (mitosis). During the G2 phase, the cell checks for any DNA damage or errors in DNA replication that may have occurred during the previous phases. If any problems are detected, the cell can either repair the damage or trigger cell death (apoptosis). Failure to properly regulate the G2 phase can result in the accumulation of genetic abnormalities, leading to the development of cancer.

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  • 30. 

    Which of the following is FALSE of prophase I?

    • The duplicated chromosomes condense.

    • The chromosome pairs with its homologue

    • Crossing over the genetic material happen among sister chromatid.

    • Each chromosome becomes attached to microtubules of newly forming spindle

    • None of the above.

    Correct Answer
    A. Crossing over the genetic material happen among sister chromatid.
    Explanation
    During prophase I of meiosis, the duplicated chromosomes condense and become visible. The homologous chromosomes pair up with each other, a process called synapsis. Crossing over occurs during prophase I, but it happens between non-sister chromatids of homologous chromosomes, not between sister chromatids. Each chromosome also becomes attached to microtubules of the newly forming spindle. Therefore, the false statement is "Crossing over the genetic material happens among sister chromatids."

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  • 31. 

    During metaphase I,

    • Chromosomes are line up at spindle equator.

    • Homologous chromosomes segregate from each other.

    • Sister chromatids are separated toward opposite pole.

    • One homologue orients toward one pole, and those of other homologue toward opposite pole.

    Correct Answer
    A. One homologue orients toward one pole, and those of other homologue toward opposite pole.
    Explanation
    During metaphase I of meiosis, the homologous chromosomes align at the spindle equator. Each homologue orients towards one pole of the cell, while the homologues of the other chromosome orient towards the opposite pole. This alignment is crucial for the subsequent separation of the homologous chromosomes during anaphase I. This process ensures the proper distribution of genetic material and the formation of genetically diverse gametes.

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  • 32. 

    Which of the following is TRUE of the cell cycle check point location?

    • G1 phase → Mitosis → G2 phase

    • G1 phase → G2 phase → Mitosis

    • G1 phase → G2 phase → S phase → Mitosis

    • G1 phase → S phase → G2 phase → Mitosis

    • None of the above

    Correct Answer
    A. G1 phase → G2 phase → Mitosis
    Explanation
    The correct answer is G1 phase → G2 phase → Mitosis. This is true because the cell cycle consists of several phases, including G1 (Gap 1), S (Synthesis), G2 (Gap 2), and Mitosis. The G1 phase is the first phase of the cell cycle, followed by the G2 phase, and then Mitosis. In the G1 phase, the cell grows and prepares for DNA replication in the S phase. In the G2 phase, the cell continues to grow and prepares for cell division in Mitosis. Therefore, the correct sequence of events in the cell cycle check point location is G1 phase → G2 phase → Mitosis.

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  • Jan 23, 2023
    Quiz Edited by
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  • Oct 10, 2019
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