What makes your look
You have big eyes and a small nose. While （然而） your friend has small 1 and a big nose. What makes you and your friend look 2 ? The answer is genes （基因）. Scientists found 15 genes deciding （决定） some of our facial features （面部特征）. Some of these genes can pass down from 3 to children. That's why 'we often hear people say, "You are just a clone （克隆） of your mom, or of your dad. "
But what facial features did you get from your 4 ? And what parts come from your dad?
If both of your parents have single eyelids （单眼皮）, you usually have single eyelids. If one of your parents has a big nose, you are likely to have the same （相同的） nose shape. One parent has a light （浅色的） skin （皮肤） color. The other parent has a dark 5 .
Most of the time, you have a skin color in between.
