Biology, 07.10.2019 23:10 dirgoperadiego2122
Two brothers have x‑linked red–green colorblind vision, and their parents have normal color vision. the first brother's karyotype is 47,xxy (klinefelter syndrome), and the second brother's karyotype is 46,xy. in which parent and in what cell division phase did the first brother's chromosomal nondisjunction occur? assume no recombination.
(a) in the father in meiosis i
(b) in either parent in somatic cell mitosis
(c) in the father in meiosis ii
(d) in the mother in meiosis ii
(e) in the mother in meiosis i
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