Human sex chromosomes differ from autosomes mainly in that sex chromosomes
Correct answer: C. determine the sex of the individual
- A. are absent from every gamete
- B. carry no genes at all
- C. determine the sex of the individual
- D. are present in four pairs
Explanation
The 23rd pair, XX in females and XY in males, determines sex, while the 22 pairs of autosomes govern the rest of the body. Gametes carry one sex chromosome each, and the Y chromosome, though gene poor, still carries the male determining SRY gene.
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