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Question
Which sperm-egg combination results in a male child?
Options
Y-sperm + Y-egg
X-sperm + Y-egg
X-sperm + X-egg
Y-sperm + X-egg
MCQ
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Solution
When a Y-bearing sperm fertilizes an X-bearing egg, the resulting zygote has the XY chromosome composition, which develops into a male child. The Y chromosome from the sperm combines with the X chromosome from the egg to produce the male genotype.
shaalaa.com
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