Cell Division Overview

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Questions and Answers

What is the primary function of the centromere in eukaryotic cell division?

  • To separate sister chromatids during anaphase
  • To synthesize DNA during the S phase
  • To hold the two sister chromatids together (correct)
  • To attach the spindle microtubules to the chromosomes

During which phase of the cell cycle do the chromosomes condense and prepare for cell division?

  • Prophase (correct)
  • G1 phase
  • G2 phase
  • S phase

What is the term for the entire process of cell division, including both mitosis and cytokinesis?

  • Mitosis
  • Meiosis
  • M phase (correct)
  • Cytokinesis

What is the purpose of the spindle microtubules during mitosis?

<p>To control chromosome movement during mitosis (A)</p> Signup and view all the answers

During which phase of mitosis do the sister chromatids separate and move to opposite ends of the cell?

<p>Anaphase (D)</p> Signup and view all the answers

What is the term for the process by which animal cells divide their cytoplasm during cytokinesis?

<p>Cleavage (A)</p> Signup and view all the answers

What is the purpose of the kinetochores during mitosis?

<p>To attach the spindle microtubules to the chromosomes (A)</p> Signup and view all the answers

During which phase of the cell cycle does the cell grow and prepare for cell division?

<p>Interphase (B)</p> Signup and view all the answers

What is the term for the structure formed by the replication of the centrosome during interphase?

<p>Aster (D)</p> Signup and view all the answers

What is the result of the separation of sister chromatids during anaphase?

<p>Two identical groups of chromosomes (D)</p> Signup and view all the answers

What is the main difference between mitosis and meiosis?

<p>Mitosis conserves the number of chromosome sets, while meiosis reduces the number of chromosome sets (D)</p> Signup and view all the answers

What is the purpose of independent assortment of chromosomes?

<p>To ensure that each gamete receives a unique combination of chromosomes (D)</p> Signup and view all the answers

During which stage of meiosis do homologous chromosomes separate?

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

What is the result of crossing over in meiosis?

<p>The exchange of genes between homologous chromosomes (C)</p> Signup and view all the answers

What is the term for the union of gametes (sperm and egg) resulting in a zygote?

<p>Fertilization (C)</p> Signup and view all the answers

What is the main difference between prophase I of meiosis and prophase of mitosis?

<p>Synapsis and crossing over occur in prophase I of meiosis (B)</p> Signup and view all the answers

What is the term for the display of chromosomes in a cell?

<p>Karyotype (C)</p> Signup and view all the answers

What is the diploid number of chromosomes in human somatic cells?

<p>46 (C)</p> Signup and view all the answers

During which stage of meiosis do sister chromatids separate?

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

What is the term for the process by which the number of chromosomes is reduced from two sets to one set?

<p>Meiosis (D)</p> Signup and view all the answers

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