Chapter 13

Last update by mayur on 03/27/2014
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A given organism has 46 chromosomes in its karyotype. We can therefore conclude which ofthe following?

A) It must be human.

B) It must be a primate.

C) It must be an animal.

D) It must be sexually reproducing.

E) Its gametes must have 23 chromosomes.

Answer:
E) Its gametes must have 23 chromosomes.

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Related Quiz Content
  • feldman2009
    Answered in Chapter 13

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

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

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

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

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

    E) tetraploid, and the chromosomes are each composed of two chromatids.

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



  • feldman2009
    Answered in Chapter 13

    How do cells at the completion of meiosis compare with cells that have replicated their DNAand 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 ofchromosomes 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.



  • feldman2009
    Answered in 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



  • feldman2009
    Answered in Chapter 13

    Which of the following happens at the conclusion of meiosis I?

    A) Homologous chromosomes are separated.

    B) The chromosome number per cell is conserved.

    C) Sister chromatids are separated.

    D) Four daughter cells are formed.

    E) The sperm cells elongate to form a head and a tail end.



    A) Homologous chromosomes are separated.



  • feldman2009
    Answered in Chapter 13

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

    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.


    The statement is true for meiosis I only


  • feldman2009
    Answered in Chapter 13

    Homologous chromosomes synapseand crossing over 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.



  • feldman2009
    Answered in Chapter 13

    Chromatids are separated from each other.

    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.



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



  • feldman2009
    Answered in Chapter 13

    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.



  • feldman2009
    Answered in Chapter 13

    Which of the following occurs in meiosis but not in mitosis?

    A) Chromosome replication

    B) Synapsis of chromosomes

    C) Production of daughter cells

    D) Alignment of chromosomes at the equator

    E) Condensation of chromatin



    B) Synapsis of chromosomes



  • feldman2009
    Answered in Chapter 13

    If an organism is diploid and a certain gene found in the organism has 18 known alleles (variants), then any given organism of thatspecies can/must have which of the following?

    A) At most, 2 alleles for that gene

    B) Up to 18 chromosomes with that gene

    C) Up to 18 genes for that trait

    D) A haploid number of 9 chromosomes

    E) Up to, but not more than, 18 different traits

    A) At most, 2 alleles for that gene



  • feldman2009
    Answered in Chapter 13

    Experiments with cohesions(protein that sister chromatids are held together by) have found that

    A) cohesions are protected from destruction throughout meiosis I and II.

    B) cohesions are cleaved from chromosomes at the centromere before anaphase I.

    C) cohesionsare protected from cleavage at the centromere during meiosis I.

    D) a protein cleaves cohesions before metaphase I.

    E) a protein that cleaves cohesions would cause cellular death.



    C) cohesionsare protected from cleavage at the centromere during meiosis I.