下列相关生物学知识的说法,正确的是(    ) A.球员踢球瞬间,

下列相关生物学知识的说法,正确的是(    )

A.球员踢球瞬间,在突触小体上完成的信息转换模式为化学信号一电信号

B.人体的胚胎干细胞可以转变成为人体的任何一种细胞和组织,利用这一特性可以培育用于移植的细胞、组织或器官

C.利用吡罗红、甲基绿染色剂对人口腔上皮细胞进行染色,显微镜下观察可以发现红色主要位于细胞核中,绿色主要位于细胞质中

D.从附睾中获取的成熟精子可以直接和卵细胞在体外受精

答案

B


解析:

在突触小体上完成的信息转换模式为电信号一化学信号,吡罗红、甲基绿分别染RNA和DNA,精子需要获能才能受精。B为书上原话。

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