鸟类的性别是不是由鸟蛋孵化时的温
不是
那是DNA决定的，或者说是受精那一刹那决定的
DNA：
脱氧核糖核酸Deoxyribonucleic acid 的简称，详细解释如下，供参考：
A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA。 DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bo...全部
不是
那是DNA决定的，或者说是受精那一刹那决定的
DNA：
脱氧核糖核酸Deoxyribonucleic acid 的简称，详细解释如下，供参考：
A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA。
DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine。
The sequence of nucleotides determines individual hereditary characteristics。
脱氧核糖核酸：一种在细胞中带有基因信息的核酸，能够自行复制并合成核糖核酸，DNA由两个核甙酸长链组成，这两个核甙酸链交结成一个双螺旋体
。
收起
