A:纤维素酶可用于植物体细胞杂交
B:胰蛋白酶可用于动物细胞培养
C:限制酶只用于提取目的基因
D:DNA连接酶只用于DNA拼接重组
受精完成的标志是( )
- What do you think of the dish I cooked for you?
- I haven't had it yet. However, it good.
根据如图回答下列问题: