Sexual Life Cycles and Cell Division

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Questions and Answers

What is the characteristic of diploid cells in a sexual life cycle?

  • Are produced by meiosis
  • Have 2 pairs of chromosomes (correct)
  • Have 1 set of chromosomes
  • Are only found in gametes

What is the term for the process of genetic recombination that occurs during synapsis?

  • Mitosis
  • Crossing over (correct)
  • Meiosis
  • Chiasmata

What is the significance of Meiosis I?

  • It only occurs in fungi
  • It increases the number of chromosomes
  • It separates sister chromatids
  • It reduces the number of chromosomes to half (correct)

What is the characteristic of Meiosis II?

<p>It separates the sister chromatids (D)</p> Signup and view all the answers

What is the structure formed during synapsis?

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

During which stage of meiosis I do homologous chromosomes line up at the metaphase plate?

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

What is the result of crossing over between non-sister chromatids in meiosis?

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

What is the outcome of meiosis in animals?

<p>Four haploid cells that develop directly into gametes (D)</p> Signup and view all the answers

What is the result of nondisjunction during meiosis?

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

What happens to DNA replication between meiosis I and II?

<p>It is suppressed (D)</p> Signup and view all the answers

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