From the thousands of genes that make up the human genome,在构成人类染色体的成千上万个基因中

make up拼凑成

The advantages make up for the disadvantages.

有利条件弥补了不利条件。

He tried hard to make up for the lose time.

他竭力试图弥补损失的时间。

but in fact they are hearing individuals但实际上他们听力正常

in fact其实； 事实上；实际上；确切地说

She is by no means poor: in fact, she's quite rich.

她可不穷，其实她很阔。

In fact we were innocent of the crime.

事实上，我们是无辜的。