A.1/16 B.3/16 C.6/16 D.9/16
A.孢原細(xì)胞分裂時(shí)期; B.大、小孢子母細(xì)胞分裂時(shí)期; C.大、小孢子分裂時(shí)期; D.管核或極核分裂時(shí)期。
A.精原細(xì)胞或卵原細(xì)胞分裂時(shí)期; B.初級精母細(xì)胞或初級卵母細(xì)胞分裂時(shí)期; C.次級精母細(xì)胞或次級卵母細(xì)胞分裂時(shí)期; D.初級和次級精母或卵母細(xì)胞分裂時(shí)期。