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The chapter emphasises that the sex of a child is determined by:
AThe father's sperm carrying X or Y chromosome
BThe mother's egg, depending on its cytoplasm
CThe time of day at which conception occurs
DThe diet of the mother during early pregnancy
Answer & Solution
Correct answer: A. The father's sperm carrying X or Y chromosome
The chapter explicitly clarifies that the FATHER's sperm carries either X or Y. Mothers always contribute X. So the genetic sex of the child is determined by the father's contribution, not the mother's.
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