Exactly how is a person's eye color determined? It depends on the amount, type and distribution of melanin, or pigment, in the iris of the eye, a genetics expert reveals — and more.

Color blindness, or color vision deficiency, is more common in males. This is due to how parents pass down a chromosome associated with the male sex.

Color blindness in females is much less common than in males. Specific genetic mutations can cause it, and these mutations vary depending on the chromosomes present. Learn more.

Sturm’s career is focused on unpacking the genetics of human pigmentation, including eye color. “Multiple genes contribute to eye color, but the main player is OCA2,” he says.

Genetics add another layer to the process, determining how much melanin an individual’s iris will produce. But, unlike simple inheritance patterns, eye color isn’t determined by a single gene.

In this article, we will explore what causes color blindness, the different types of color blindness, and what colorblind people see. We’ll also suggest some strategies for coping with everyday ...

Garfield might be the most iconic orange tabby around, but Hollywood has seen quite a few leading cats of the same color—Heathcliff, Oliver, Hiyao Miyazaki’s adorably terrifying Catbus from My ...

The Y chromosome has seen significant changes over the course of human evolution. "In comparison to the X, the Y is tiny. There are only 45 genes on the Y chromosome, ...

Eye color, hair color and skin color are all affected by melanin, or pigment, that our bodies produce, Stevens told Fox News Digital. Eye color is determined by the amount, type and distribution ...