下列关于生物变异的叙述中不正确的是 A基因突变是随机的可以�生在个体�育的任何时期b二倍体植株加倍为四倍体�育延迟结实率高c Template




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tomski下列关于生物变异的叙述中不正确的是 a基因突变是随机的可以�生在个体�育的任何时期b二倍体植株加倍为四倍体�育延迟结实率高c coloring