A pair of genes was recessiveness homozygote, it was probably to be ill.

只要有一对基因隐性纯合时，即可患病。

youdao

The sterility was controlled by a pair of recessive nuclear genes.

不育性由一对隐性核基因控制。

youdao

The sterility was controlled by a pair of recessive nuclear genes.

不育性由一对隐性核基因控制。

youdao