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生物的性状和相对性状的概念

> 下列说法错误的是 [ ] A、人的体细胞中控制性状的基因是成对存在的 B、控制人类性状的基因都是显性基因 C、人体中1个显性基因和1个隐性基因成对存在时表现为显性性状 D、如果无耳垂的基因组成为dd，则有耳垂的基因组成为DD或Dd

问题：

发布时间：2024-09-07

下列说法错误的是
[     ]
A、人的体细胞中控制性状的基因是成对存在的
B、控制人类性状的基因都是显性基因
C、人体中1个显性基因和1个隐性基因成对存在时表现为显性性状
D、如果无耳垂的基因组成为dd，则有耳垂的基因组成为DD或Dd

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