单选题:能克服远缘杂交不亲和技术的是(  )。

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  • 题目类型:单选题
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题目内容:

能克服远缘杂交不亲和技术的是(  )。 A.组织培养
B.细胞融合
C.动物胚胎移植
D.单倍体育种

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蛋白质在等电点时,溶解度和导电性分别是(  )。

蛋白质在等电点时,溶解度和导电性分别是(  )。 A.最小,最小 B.最大,最大 C.最小,最大 D.最大,最小

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