Meiosis stages

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Questions and Answers

Which of the following best describes the main event of Anaphase II?

  • Chromosomes align in the middle of the cell.
  • Sister chromatids separate and move to opposite poles. (correct)
  • The nuclear envelope reforms.
  • Homologous chromosomes pair up.

What is the direct result of Telophase II and Cytokinesis II?

  • Two diploid cells.
  • Four haploid cells. (correct)
  • Two haploid cells.
  • Four diploid cells.

During which phase of Meiosis II do chromosomes align along the middle of the cell?

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

What happens to the nuclear envelope during Prophase II?

<p>It breaks down. (B)</p> Signup and view all the answers

What type of cells are formed as the final product of Meiosis II?

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

During which phase of meiosis does the nuclear envelope break down?

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

In what phase of meiosis do homologous pairs of chromosomes align along the middle of the cell?

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

What happens to sister chromatids during Anaphase I?

<p>They remain attached at their centromeres (B)</p> Signup and view all the answers

Which process involves homologous chromosomes exchanging DNA?

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

During which phase does cytokinesis divide the cell into two?

<p>Telophase I &amp; Cytokinesis I (B)</p> Signup and view all the answers

What structure forms during Prophase I to help organize and separate chromosomes?

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

Which of the following separates during Anaphase I?

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

What is the outcome of Telophase I?

<p>Two haploid cells (A)</p> Signup and view all the answers

Flashcards

Prophase I

Chromosomes become visible and the nuclear envelope disappears. Crossing over occurs.

Metaphase I

Homologous chromosome pairs line up in the middle of the cell.

Anaphase I

Homologous chromosomes separate and move to opposite poles.

Telophase I & Cytokinesis I

Nuclear envelopes reform, and the cell divides into two.

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Crossing Over

Exchange of genetic material between homologous chromosomes.

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Independent Assortment

Homologous pairs separate randomly, increasing genetic diversity.

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Homologous Chromosomes

Pairs of chromosomes that carry the same genes

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Centromere

The point on a chromosome where sister chromatids are joined

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End Result of Meiosis II

Four genetically different haploid cells are produced, each containing one copy of each chromosome, forming gametes.

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