Biology, 24.09.2020 01:01 kamrulh278
In the animation, the rare white‑eyed males generated from offspring of true‑breeding red‑eyed females and white‑eyed males were the result of a nondisjunction of X chromosomes in the female during meiosis I. Could white‑eyed males be generated in this cross by a nondisjunction of X chromatids in the female during meiosis II? Why or why not? Yes, because a nondisjunction of X chromatids in meiosis II of a female will result in both white-eyed males and white-eyed females. No, if a nondisjunction of X chromatids occurred in meiosis II of a female, only white-eyed females could be generated. No, if a nondisjunction of X chromatids occurred in meiosis II of a female, all progeny would have red eyes. No, if a nondisjunction of X chromatids occurred in meiosis II of a female, none of the resulting offspring would be viable. Yes, because a nondisjunction of X chromatids in meiosis II of a female will generate two abnormal gametes, one with two X chromosomes and one with no X chromosome.
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