Chapter 13

Last update by mayur on 03/27/2014
673030 People have viewed this Quiz
  • Share

Independent assortment of chromosomes is a result of

A) the random and independent way in which each pair of homologous chromosomes lines up at the metaphase plate during meiosis I.

B) the random nature of the fertilization of ova by sperm.

C) the random distribution of the sister chromatids to the two daughter cells during anaphase II.

D) the relatively small degree of homology shared by the X and Y chromosomes.

E) All of the above



Answer:

A) the random and independent way in which each pair of homologous chromosomes lines up at the metaphase plate during meiosis I.



View Chapter 13 as Flashcard Deck

Related Quiz Content
  • feldman2009
    Answered in Chapter 13

    When pairs of homologous chromosomes separate during anaphase I,

    A) the maternal chromosomes all move to the same daughter cell.

    B) the sister chromatids remain attached to one another.

    C) recombination is not yet complete.

    D) the synaptonemal complex is visible under the light microscope.

    B) the sister chromatids remain attached to one another.



  • feldman2009
    Answered in Chapter 13

    Natural selection and recombination due to crossing over during meiosis I are related in which of the following ways?

    A) Recombinants are usually selected against.

    B) Non-recombinant organisms are usuallyfavored by natural selection if there is environmental change.

    C) Most recombinants reproduce less frequently than do non-recombinants.

    D) Recombinants may have combinations of traits that are favored by natural selection.

    E) Recombination does not affect natural selection.



    D) Recombinants may have combinations of traits that are favored by natural selection.



  • feldman2009
    Answered in Chapter 13

    Which life cycle stage is found in plants but not animals?

    A) Gamete

    B) Zygote

    C) Multicellular diploid

    D) Multicellular haploid

    E) Unicellular diploid

    D) Multicellular haploid



  • feldman2009
    Answered in Chapter 13

    Homologous chromosomes move toward opposite poles of a dividing cell during

    A) mitosis.

    B) meiosis I.

    C) meiosis II.

    D) fertilization.

    E) binary fission.



    B) meiosis I.



  • feldman2009
    Answered in Chapter 13

    If the DNA content of a diploid cell in the G1 phase of the cell cycle isx, then the DNAcontent of the same cell at metaphaseof meiosis I would be

    A) 0.25x.

    B) 0.5x.

    C)x.

    D) 2x.

    E) 4x.



    D) 2x.



  • feldman2009
    Answered in Chapter 13

    If we continued to follow the cell lineage from question 5, then the DNA content of a singlecell at metaphase of meiosis II would be

    A) 0.25x.

    B) 0.5x.

    C)x.

    D) 2x.

    E) 4x.



    C)x.



  • feldman2009
    Answered in Chapter 13

    How many different combinations of maternal and paternal chromosomes can be packaged in gametes made by an organism with a diploid number of 8 (2n = 8)?

    A) 2

    B) 4

    C) 8

    D) 16

    E) 32



    D) 16