[生物] 生物三題
1.Gamete formation is:
(A)The result of the process of mitosis.
(B)The pairing of homologous chromosome.
(C)The formation of sex cells.
(D)The fusion of gametes.
(E)A process that occurs only in asexually reproducing forms.
2.下列對抑癌基因(tumor suppressor genes)敘述何者正確?
(A)occur normally in cells.
(B)promote metastasis.
(C)are brought into cells by viruses.
(D)only rarely affect the development of cancer.
3.The movenment of water through a memberane is dependent on
(A)the concerntration of solute.
(B)channel proteins.
(C)the extent of packing of the phospholipids.
(D)active transport.
(E)endocytosis.
謝謝大家幫忙!!
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