Biologists know that there is a substantial genetic component to intelligence.

生物学家知道智力有着大量遗传组成部分。

We find that height and weight have substantial genetic components.

我们发现身高和体重有很大的遗传成分。

But nevertheless, a substantial genetic component, as does special mental abilities.

但尽管如此，智力也是一个重要的基因成分。

We find that general intelligence has a substantial genetic component, a little bit less than the sum of the physical traits like height and weight, and brainwaves.

我们发现，一般智力有很大一部分是由基因决定的，比身高、体重和脑电波等生理特征的总和要少一点。