My eyes have a lot of melanin, that's why they are dark brown.

我眼睛有很黑色素，所以是褐色。

Your eyes don't have any pigment or melanin in them.

眼睛没有黑色或其他色素。

But some of them happened to produce less melanin.

比如钙，铁，镁，磷酸盐，锌。

For light-skin people, that extra melanin darkens their skin and produces a tan.

这取决于阳光照射时皮肤反应。

The more melanin you have, the darker your skin.

拥有黑色素越，皮肤越黑。

The melanin is what darkens your skin.

黑色素使皮肤变黑。

OCA2 is responsible for a protein called melanin in our eyes.

OCA2 负责我们眼睛中一种叫做黑色素蛋白质。

Some are yellow others are red and some contain the dark melanin pigment.

有些是黄色，有红色， 同时也有些有黑色素。人们以为。

Your hair's colour is determined by something called melanin, which is pigment.

头发颜色是由一种叫做黑色素色素决定。

Eye color is also related to melanin.

眼睛颜色与黑色素有关。

The melanin makes the color of the eyes?

黑色素决定了眼睛颜色？

This pigment ratio is controlled by a gene, which also controls the melanin in our skin.

这种色素比例是由一个基因控制，这个基因也控制着我们皮肤中黑色素。

Melanocytes associated with the hair root will deposit melanin to the cells that compose our hair.

与发根相关黑色素细胞会将黑色素沉积到构成我们头发细胞中。

The melanin levels in a baby's eyes determine how dark their eyes become.

婴儿眼睛中黑色素水平决定了他们眼睛变黑程度。

Animals get their shades of browns, blacks and reds, as the result of a pigment called melanin.

动物身上棕色、黑色和红色是一种叫做黑色素色素所导致。

It gets its color from two types of melanin: brown-black eumelanin and red-yellow pheomelanin.

棕黑色真黑色素和红黄色褐色素。

The color of your eyes has to do with the amount of melanin you have in your iris.

眼睛颜色与虹膜中黑色素数量有关。

They contained minerals that would result from the decay of melanin.

它们含有黑色素衰变後矿物。

Your body makes a dark pigmented molecule called melanin that absorbs UV light to protect your skin from damage.

身体会产生黑色素来保护皮肤。

The gray comes because we lose melanin.

灰色是因为我们失去了黑色素。