20.02.2024 - Understanding Meiosis Cell Division
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Questions and Answers

During which stage do sister chromatids begin to condense in prophase II?

  • Telophase II
  • Anaphase II
  • Metaphase II
  • Prophase II (correct)

    • At which stage do sister chromatids align at the metaphase plate?

  • Telophase II
  • Prophase II
  • Metaphase II (correct)
  • Anaphase II

    • What is the final event in anaphase II?

  • Sister chromatids separate and move to opposite poles (correct)
  • Chromosomes align at the metaphase plate
  • Sister chromatids condense
  • Nuclear envelopes reform

    • Which stage marks the de-condensation of chromosomes and cytokinesis?

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

    What is the purpose of these stages in meiosis?

    <p>To ensure the accurate distribution of genetic material</p> Signup and view all the answers

    During which phase of Meiosis I do homologous chromosomes exchange genetic material?

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

    What is the main difference between cytokinesis in Meiosis I and cytokinesis in Meiosis II?

    <p>In Meiosis I, the cell divides into two cells, while in Meiosis II, the cell divides into four cells.</p> Signup and view all the answers

    What happens during Anaphase I of Meiosis?

    <p>Homologous chromosomes are pulled apart and move to opposite poles.</p> Signup and view all the answers

    Which stage of Meiosis I is characterized by the pairing of homologous chromosomes and crossing over?

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

    What is one main similarity between Meiosis II and mitosis?

    <p>Both separate sister chromatids into different cells.</p> Signup and view all the answers

    Which phase of Meiosis II separates sister chromatids into two different cells?

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

    During which stage of Meiosis II are sister chromatids separated and pulled to opposite poles?

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

    What is the significance of the nuclear envelope breaking down again in Prophase II of Meiosis?

    <p>To enable the condensation of chromosomes</p> Signup and view all the answers

    Which event occurs during Telophase II and Cytokinesis in Meiosis?

    <p>Chromosome de-condensation</p> Signup and view all the answers

    What differentiates the alignment of chromosomes in Metaphase II from Metaphase I in Meiosis?

    <p>Orientation of sister chromatids in Metaphase II</p> Signup and view all the answers

    What ensures that genetic material is accurately distributed in Meiosis?

    <p>Separation of sister chromatids in Anaphase II</p> Signup and view all the answers

    What is the main purpose of meiosis in terms of chromosome number?

    <p>To reduce the chromosome number by half</p> Signup and view all the answers

    Which phase in Meiosis I involves the alignment of homologous chromosomes at the metaphase plate?

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

    What is a key event that occurs during Prophase I of Meiosis?

    <p>Crossing over of genetic material</p> Signup and view all the answers

    How does Anaphase I in Meiosis differ from Anaphase in mitosis?

    <p>Homologous chromosomes are pulled apart in Anaphase I and sister chromatids in mitosis</p> Signup and view all the answers

    Which term describes the division that separates sister chromatids into two different cells in Meiosis II?

    <p>Equational division</p> Signup and view all the answers

    What happens during Telophase I of Meiosis?

    <p>Chromosomes de-condense, and the nuclear envelope reforms</p> Signup and view all the answers

    What is the significance of the sister chromatids facing opposite poles during Metaphase II of Meiosis?

    <p>It promotes genetic diversity by ensuring each daughter cell receives a mix of genetic material.</p> Signup and view all the answers

    What is the main role of cytokinesis in Telophase II of Meiosis?

    <p>To divide the cytoplasm and create four haploid daughter cells.</p> Signup and view all the answers

    What ensures accurate distribution of genetic material during Anaphase II of Meiosis?

    <p>The separation of sister chromatids to opposite poles.</p> Signup and view all the answers

    How does Prophase II differ from Prophase I in Meiosis?

    <p>Prophase II includes the condensation of chromosomes consisting of sister chromatids.</p> Signup and view all the answers

    Why is it crucial that the chromosomes align at the metaphase plate in both Metaphase I and Metaphase II of Meiosis?

    <p>To ensure proper distribution of genetic material to daughter cells.</p> Signup and view all the answers

    What is the main difference between cytokinesis in Meiosis I and cytokinesis in Meiosis II?

    <p>Cytokinesis in Meiosis I results in two cells with the same number of chromosomes as the original cell, while cytokinesis in Meiosis II results in two cells with half the number of chromosomes.</p> Signup and view all the answers

    Which stage of Meiosis II is analogous to Metaphase I in Meiosis?

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

    During which sub-stage of Prophase I do homologous chromosomes begin to pair?

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

    What key process occurs during Anaphase I of Meiosis that distinguishes it from Anaphase II?

    <p>Separation of homologous chromosomes</p> Signup and view all the answers

    Which event characterizes Telophase I of Meiosis?

    <p>Formation of a new nuclear envelope around each set of chromosomes</p> Signup and view all the answers

    What is a distinguishing feature of Cytokinesis in Meiosis II compared to Cytokinesis in Meiosis I?

    <p>Cytokinesis in Meiosis II results in four genetically distinct daughter cells, while cytokinesis in Meiosis I results in two daughter cells.</p> Signup and view all the answers

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