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28 January, 21:15

If cell X enters meiosis, and nondisjunction of one chromosome occurs in one of its daughter cells during meiosis II, what will be the result at the completion of meiosis? a. ¼ of the gametes descended from cell X will be n+1, ¼ will be n-1, and ½ will be n. b. Half of the gametes descended from cell X will be n+1, and half will be n-1. c. All the gametes descended from cell X will be diploid. d. Two of the four gametes descended from cell X will be haploid, and two will be diploid.

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  1. 29 January, 00:27
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    The right answer is A.

    The non-meiotic disjunction is an absence of separation of two members of a pair of homologous chromosomes or chromatids of a chromosome during meiosis or mitosis, it follows that one of the daughter cells presents two copies of the same chromosome or chromatids (n + 1) and the other daughter cell receives none (n-1).
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