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Biology, 10.02.2020 23:27 angelicadattoli

Considering that males are produced by Klinefelter (XXY) syndrome, XYY and normal XY chromosome combinations, and females are produced by Turner (XO) syndrome, triple-X (XXX) and normal XX combinations, it is obvious that

a. maleness is caused by the minimal presence of one Y chromosome.
b. maleness occurs in the absence of two or more X chromosomes.
c. maleness is caused by the presence of only one X chromosome.
d. femaleness is caused by the presence of two or more X chromosomes.

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