Gametes are produced by b. gonads
Gonads are the organs present in males and females which are involved in the production of sex cells. In females, the gonads are the ovaries. In males, the gonads are the testes. Hence, option b) gonads is correct.
For females, the gametes or sex cells are the egg cells. On the other hand, in males, the gametes of sex cells are sperm cells.
Option a is incorrect as sex chromosomes determine the sex of an individual.
Option c is not correct as the function of external genitalia is to protect and layer the inner parts of the genetelia.
Option d is not correct as the internal genitalia are not the production sites for gametes.
Option e autosomes is not correct as autosomes are chromosomes other than the sex chromosomes.
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