某种生物的染色体数目为2n=6条，如果不考虑交换，它可能形成的正常生殖细胞类型是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24547' and id < 2107592 and id<>'2107592' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24547' and id > 2107592 and id<>'2107592' order by id asc limit 5