什么情况不符合基因分离定律?具体举例

2025-03-15 23:40:59
推荐回答(1个)
回答1:

使用条件
1.有性生殖生物的性状遗传
基因分离定律的实质是等位基因随同源染色体的分开而分离,而同源染色体的分开是有性生殖生物产生有性生殖细胞的减数分裂特有的行为。
2.真核生物的性状遗传
3.细胞核遗传
只有真核生物细胞核内的基因随染色体的规律性变化而呈规律性变化。细胞质内遗传物质数目不稳定,遵循细胞质母系遗传规律。
4.一对相对性状的遗传
两对或两对以上相对性状的遗传问题,分离规律不能直接解决,说明分离规律适用范围的局限性。
在一下情况下不遵守基因自由组合定律
1.只考虑一对等位基因时
2.连锁的基因
3.属于细胞质遗传的基因
4.无性生殖的生物
5.原核生物
6.病毒

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