Suppose a single nondisjunction event occurs during anaphase II of meiosis in a normal male cell from meiosis I. Of
the resulting sperm, ____.
a. three would be normal and one would have an extra chromosome
b. two would be normal, one would have an extra chromosome, and one would be missing a chromosome
c. two would have an extra chromosome and two would be missing a chromosome
d. all four sperm would have an extra chromosome
e. three would have an extra chromosome and one would be normal
ANSWER: b
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