A man is found to be karyotypically 47,XYY.The presence of an extra Y chromosome most likely results from:
A)nondisjunction in a maternal meiocyte at meiosis I.
B)nondisjunction in a maternal meiocyte at meiosis II.
C)nondisjunction in a paternal meiocyte at meiosis I.
D)nondisjunction in a paternal meiocyte at meiosis II.
E)unequal crossing over.

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The Answer of A man is found to be karyotypically 47,XYY.The presence of an extra Y chromosome most likely results from:
A)nondisjunction in a maternal meiocyte at meiosis I.
B)nondisjunction in a maternal meiocyte at meiosis II.
C)nondisjunction in a paternal meiocyte at meiosis I.
D)nondisjunction in a paternal meiocyte at meiosis II.
E)unequal crossing over.

A Man Is Found to Be Karyotypically 47,XYY