Usually, for gene expression, nucleotides are read in groups of three.

通常对于基因表达来说，核苷酸以三个为一组被读取。

Though his gene expressions changed, his DNA did not.

尽管他的基因表达发生了变化，但他的DNA并没有改变。

However, researchers found 7 percent of his gene expressions had also changed.

然而，研究人员发现他7%的基因表达也发生了变化。

Finally, the team investigated the mechanisms behind these differences in gene expression.

最后，研究小组用基因表达调查造成这些不同的机理原因。

When that happened, changes in gene expression appropriate to the new status quickly followed.

地位等级一旦发生改变，与之相应的基因表达随即改变。

Gene expressions determine whether genes turn off and on, which can change how cells function.

基因表达决定了基因是否关闭和开启，这可能改变细胞的功能。

So we might expect because of this distance, evolutionary distance, that gene expression in the brain would be quite different.

因此我们可以预想，由于这种进化距离，大脑中的基因表达可能会有相当大的差别。

One piece of the puzzle could be changes in gene expression.

谜题之一可能是基因表达的变化。

Within the cell, they can directly influence gene expression and protein synthesis.

在细胞内，它们可以直接影响基因表达和蛋白质合成。

Now, with identical twins, they have the same DNA, but sometimes gene expression can occur in one twin and not the other.

同卵双胞胎有相同的 DNA，但有时基因表达可能只发生在一个双胞胎中。