MediumZoologyHuman Reproduction
+4 / -1
The sex of the fetus is determined by:
A
The mother
B
The father
C
Both parents equally
D
The environment
Explanation
Sex depends on whether the sperm carrying an X chromosome or a Y chromosome fertilizes the ovum (which always carries an X).
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The secretion of which layer of the ovum is changed by the sperm to prevent poly
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