Uau and uac both code for tyrosine. a change from uau to uac would thus be a mutation; a change from uau to uag would be a mutation

They are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. Both systems have gonads (male have testes and female have ovaries) that produce gametes (testes produce sperm and ovaries produce egg or ovum) and sex organs.

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