12. Which of the following is true concerning human sexual life cycle?
(A)Gametes are produced by mitosis.
(B)Gametes can divide by mitosis.
(C)There is a multicellular haploid stage.
(D) The zygote is the only diploid cells.
(E)Fertilization and meiosis alternate.
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A.配子是減數分裂(meiosis)形成...
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(A) Gametes are prod...
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