There are many genes that affect the color of our hair and skin. Dark colors are caused by higher amounts of melamine in hair/skin. Those darker traits are dominant genes. In the same vein, two black people can have a child that will have lighter skin than them if the parents carry recessive genes and pass them on.
But it is even more complex than that because there are so many factors that affect the expressivity of genes : the environment, the diet or even other genes.
And don’t get me started on genre/sex… Biology is sooo complex, and genetics is just one of its branch, but people want to believe it’s simple to justify their bigotry. I studied biology for two years at university and I just know that I know practically nothing about it…
There are many genes that affect the color of our hair and skin. Dark colors are caused by higher amounts of melamine in hair/skin. Those darker traits are dominant genes. In the same vein, two black people can have a child that will have lighter skin than them if the parents carry recessive genes and pass them on.
But it is even more complex than that because there are so many factors that affect the expressivity of genes : the environment, the diet or even other genes.
And don’t get me started on genre/sex… Biology is sooo complex, and genetics is just one of its branch, but people want to believe it’s simple to justify their bigotry. I studied biology for two years at university and I just know that I know practically nothing about it…