Biology chapter 13

Last update by mayur on 04/01/2014
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In animals, meiosis results in gametes, and fertilization results in

A) spores.

B) gametophytes.

C) zygotes.

D) sporophytes.

E) clones.

Answer:
C) zygotes.

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  • yosay
    Answered in Biology chapter 13

    Referring to a plant sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes?

    A) sporophyte meiosis

    B) gametophyte mitosis

    C) gametophyte meiosis

    D) sporophyte mitosis

    E) alternation of generations

    B) gametophyte mitosis
  • yosay
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    Which of the following is an example of alternation of generations?


    A) A grandparent and grandchild each have 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 to produce 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 to produce a tetraploid cell.

    B) A diploid plant (sporophyte) produces, by meiosis, a spore that gives rise to a multicellular, haploid pollen grain (gametophyte
  • yosay
    Answered in Biology chapter 13

    Which of the following is missing from the life cycle progression shown below?

    sporophyte-meiosis-spore-________-gametophyte-mitosis-gametes- fertilization-zygote


    A) meiosis


    B) mitosis


    C) synapsis


    D) karyotype


    E) fertilization

    B) mitosis
  • yosay
    Answered in Biology chapter 13

    In animals, somatic cells are produced by mitosis and ________ are produced by meiosis.

    A) gametes

    B) clones

    C) zygotes

    D) spores

    E) diploid cells
    A) gametes
  • yosay
    Answered in Biology chapter 13

    All of the following are functions of meiosis in plants except


    A) production of spores.


    B) reduction of chromosome number by half.


    C) independent assortment of chromosomes.


    D) crossing over and recombination of homologous chromosomes.


    E) production of identical daughter cells.
    E) production of identical daughter cells.
  • yosay
    Answered in Biology chapter 13

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


    A) diploid, and the chromosomes are composed of a single chromatid.


    B) diploid, and the chromosomes are composed of two chromatids.


    C) haploid, and the chromosomes are composed of a single chromatid.


    D) haploid, and the chromosomes are composed of two chromatids.


    E) tetraploid, and the chromosomes are composed of two chromatids
    D) haploid, and the chromosomes are composed of two chromatids
  • yosay
    Answered in Biology chapter 13

    How do cells at the completion of meiosis compare with cells that have replicated their DNA and are just about to begin meiosis?


    A) They have twice the amount of cytoplasm and half the amount of DNA.


    B) They have half the number of chromosomes and half the amount of DNA.


    C) They have the same number of chromosomes and half the amount of DNA.


    D) They have half the number of chromosomes and one-fourth the amount of DNA.


    E) They have half the amount of cytoplasm and twice the amount of DNA
    D) They have half the number of chromosomes and one-fourth the amount of DNA
  • yosay
    Answered in Biology chapter 13

    When does the synaptonemal complex disappear?


    A) late prophase of meiosis I


    B) during fertilization or fusion of gametes


    C) early anaphase of meiosis I


    D) mid-prophase of meiosis II


    E) late metaphase of meiosis II
    A) late prophase of meiosis I
  • yosay
    Answered in Biology chapter 13

    Which of the following terms belongs with the words synapsis, tetrads, and chiasmata?


    A) haploid


    B) crossing over


    C) autosomes


    D) prophase II

    E) fertilization

    B) crossing over
  • yosay
    Answered in Biology chapter 13

    I. prophase I

    II. metaphase I

    III. anaphase I

    IV. telophase I

    V. prophase II

    VI. metaphase II

    VII. anaphase II

    VIII. telophase II


    Tetrads of chromosomes are aligned at the center of the cell; independent assortment soon follows

    A) I


    B) II


    C) IV

    D) VII

    E) VIII

    B) II