WK 3: Cell cycle and division
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Questions and Answers

What is the primary function of G1 phase in the cell cycle?

  • Metaphase
  • Spindle pole duplication
  • Growth of the cell following cell division (correct)
  • DNA synthesis

    • What is the term for a cell that is unable to proliferate and leave the cell cycle?

  • Labile cell
  • Somatic cell
  • Stable cell
  • Permanent cell (correct)

    • What is the term for the part of a chromosome that joins two sister chromatids?

  • Chromatid
  • Centromere (correct)
  • Chromosome
  • Gamete

    • What is the process by which a single mother cell leads to two identical daughter cells?

    <p>Mitosis</p> Signup and view all the answers

    What is the term for a cell that continuously divides and regenerates?

    <p>Labile cell</p> Signup and view all the answers

    What is the process by which gametes are produced?

    <p>Meiosis</p> Signup and view all the answers

    What happens to the chromosomes at the centromere during anaphase of mitosis?

    <p>One chromatid moves to one pole, the other to the other pole</p> Signup and view all the answers

    What is the result of mitosis in terms of the number of chromosomes per cell?

    <p>The number of chromosomes remains the same</p> Signup and view all the answers

    What is the purpose of meiosis?

    <p>To produce gametes with halved chromosome number</p> Signup and view all the answers

    What is the term for the stage of mitosis where chromosomes line up along the middle of the cell?

    <p>Metaphase</p> Signup and view all the answers

    What is the result of the M checkpoint in mitosis?

    <p>Spindle attachment is corrected</p> Signup and view all the answers

    What is the term for the process of cell division that results in two identical daughter cells?

    <p>Mitosis</p> Signup and view all the answers

    What occurs in germ cells?

    <p>Meiosis</p> Signup and view all the answers

    What is the result of cytokinesis in meiosis?

    <p>Four haploid cells</p> Signup and view all the answers

    What is the result of mitosis in somatic cells?

    <p>Two diploid cells</p> Signup and view all the answers

    What occurs during prophase I of meiosis?

    <p>Pairing of homologs and crossing over</p> Signup and view all the answers

    What happens to sister chromatids during anaphase I of meiosis?

    <p>They do not divide</p> Signup and view all the answers

    What is the result of fertilisation?

    <p>One diploid nucleus</p> Signup and view all the answers

    How many unique combinations of chromosomes can result from the process of crossing over during meiosis?

    <p>8,388,608</p> Signup and view all the answers

    During which stage of meiosis do the homologous pairs separate?

    <p>Anaphase I</p> Signup and view all the answers

    What is the result of Telophase I in meiosis?

    <p>23 chromosomes per cell</p> Signup and view all the answers

    What is the main difference between Meiosis II and Mitosis?

    <p>Meiosis II starts with half the number of chromosomes</p> Signup and view all the answers

    During which stage of meiosis do the centromeres divide?

    <p>Anaphase II</p> Signup and view all the answers

    What is the result of the combination of Telophase II and cytokinesis in meiosis?

    <p>Two gametes with 23 chromosomes</p> Signup and view all the answers

    What is the term for the process of cell division that results in two genetically identical daughter cells?

    <p>Mitosis</p> Signup and view all the answers

    What is the name of the chromosomes that occur in pairs, with one inherited from each parent?

    <p>Homologous chromosomes</p> Signup and view all the answers

    What is the term for a reproductive cell that is capable of being fertilized and reproducing an entire organism?

    <p>Gamete</p> Signup and view all the answers

    What is the term for the part of a chromosome that carries a linear array of genes?

    <p>Chromosome</p> Signup and view all the answers

    What is the stage of mitosis where the nuclear envelope breaks down?

    <p>Metaphase</p> Signup and view all the answers

    What type of cell is a component of the body but is not a reproductive cell?

    <p>Somatic cell</p> Signup and view all the answers

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