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Homework Help: Meiosis I Cell Division

  1. Jan 19, 2008 #1
    1. The problem statement, all variables and given/known data

    If we follow meiosis in a diploid heterozygote, the two alleles are, following the first cell division,

    a. no longer together in one cell
    b. together on a chromatid
    c. present only as mutants
    d. blended into a new mix
    e. chromatids




    2. Relevant equations
    Not applicable?



    3. The attempt at a solution

    Is the correct choice a. no longer together in one cell? For example, let’s say there is a chromosome with B/B on it. (Each B is on a chromatid). Another chromosome has b/b (each b is on separate chromatid) on it. This homologous pairs lines up on the equatorial plate. After anaphase one daughter cell will house chromosome b/b and the other will house B/B?





    1. The problem statement, all variables and given/known data
    If a pair of chromosomes at metaphase I contain the alleles A and A in one chromosome and a and a in the other chromosome, the first daughter cells will contain

    a. either a and a or A and A
    b. either A and a or a and A
    c. A and a and A and a
    d. AB, Ab, aB, and ab
    e. a and z



    2. Relevant equations
    Not applicable?


    3. The attempt at a solution

    Is the correct answer a. either a and a or A and A? At the end of the first division in telophase, one daughter cell will have a chromosome with A/A on it and the other daughter cell will have a chromosome with a/a on it?

    Thanks.
     
  2. jcsd
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