Chapter 13

Last update by mayur on 03/27/2014
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Referring to a plant sexual life cycle, which of the following terms describes the process thatleads directly to the formation of gametes?

A) Sporophyte meiosis

B) Gametophyte mitosis

C) Gametophyte meiosis

D) Sporophyte mitosis

E) Alternation of generations



Answer:

B) Gametophyte mitosis



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    Answered in Chapter 13

    Which of the following is an example of alternation of generations?

    A) A grandparent and grandchild eachhas dark hair, but the parent has blond hair.

    B) A diploid plant (sporophyte) produces, by meiosis, a spore that gives rise to a multicellular,haploid pollen grain (gametophyte).

    C) A diploid animal produces gametes by meiosis, and the gametes undergo fertilization toproduce a diploid zygote.

    D) A haploid mushroom produces gametes by mitosis, and the gametes undergo fertilization,which is immediately followed by meiosis.

    E) A diploid cell divides by mitosis to produce two diploid daughter cells, which then fuse toproduce a tetraploid cell.



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    After telophase I of meiosis, the chromosomal makeup of each daughter cell is

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    When does the synaptonemal complex disappear?

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    A) Homologous chromosomes are separated.



  • feldman2009
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    A cell divides to produce two daughter cells that are genetically different.

    A) The statement is true for mitosis only.

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    D) The statement is true for mitosis and meiosis I.

    E) The statement is true for mitosis and meiosis II.


    The statement is true for meiosis I only


  • feldman2009
    Answered in Chapter 13

    Homologous chromosomes synapseand crossing over occurs.

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    B) The statement is true for meiosis I only.

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    B) The statement is true for meiosis I only.



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  • feldman2009
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    Independent assortment of chromosomes occurs.

    A) The statement is true for mitosis only.

    B) The statement is true for meiosis I only.

    C) The statement is true for meiosis II only.

    D) The statement is true for mitosis and meiosis I.

    E) The statement is true for mitosis and meiosis II.

    B) The statement is true for meiosis I only.