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Home › CBSE Class 12 (Science) › Biology › Principles of Inheritance and Variation › What decides the sex of a human child?

What decides the sex of a human child?

AThe sperm genetic makeup
BThe ovum genetic makeup
CThe mother's diet
DThe uterine temperature
Answer & Solution
Correct answer: A. The sperm genetic makeup
The ovum is always X, so an X or Y carrying sperm decides whether the child is female or male.
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