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二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 Template




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tomski二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 coloring
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