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The gender of a human offspring is established by the chromosomal makeup of the zygote, and it is influenced by the sperm that unites with the egg.

1. True
2. False
3. Indeterminate
4. Not applicable

Correct answer: True

Solution

The sex of the baby is determined by the type of sperm (X or Y chromosome) that fertilizes the ovum, as the ovum always contributes an X chromosome. If the sperm carries an X chromosome, the baby will be female (XX), and if it carries a Y chromosome, the baby will be male (XY).

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