Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 13, Problem 3VCQ

Figure 13.6 Which of the following statements about nondisjunction is true?

  1. Nondisjunction only results in gametes with n+1 or n-1 chromosomes.

  • Nondisjunction occurring during meiosis II results in 50 percent normal gametes.
  • Nondisjunction during meiosis I results in 50 percent normal gametes.
  • Nondisjunction always results in four different kinds of gametes.
  • Chapter 13, Problem 3VCQ, Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only

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    Meiosis is relatively rare and mitosis is relatively common. Which of the following makes meiosis different from mitosis?     Meiosis produces DNA-less cells.   We don't fully understand meiosis mechanisms.   All gametes are diploid, whereas daughter cells from mitosis are haploid.   The resulting cells (gametes) are haploid.
    Nondisjunction results in uneven distribution of chromosomes during meiosis. Which of the following are true during meiosis? Select all that apply When nondisjunction occurs in meiosis II, sister chromatids fail to separate When nondisjunction occurs in meiosis I, homologous chromosomes fail to separate If a cell has a diploid number of 6 (2n =6), and one pair of chromosomes experiences nondisjunction during meiosis I, then two cells will have 4 chromosomes, and two cells will have 2 chromosomes If a cell has a diploid number of 6 (2n =6), and one pair of chromosomes experiences nondisjunction during meiosis I, then two cells will have 6 chromosomes, and two cells will have none
    If an organism has a total diploid chromosome number of 18, how many chromosomes will be in a single gamete? 54 9. 18 36
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