Eye Color Inheritance

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Submitted By lwlovesshoes
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Eye Color Inheritance
Eye color is a physical trait that is determined by the pairing of genes from both parents. Eye color is a polygenic trait, which means there are multiple genes that interact to produce the color. It was previously thought that a single gene pair following dominant and recessive inheritance patterns was responsible for eye color, but it is now known to be much more complex than that, involving at least three gene pairs. Geneticists have focused on two of the three gene pairs to help clarify the inheritance of eye color: EYCL1, called the gey gene, and EYCL3, called the bey2 gene. There are several genes which influence the color of a person's eyes. As a general rule brown eyed genes are often dominant and blue eyed genes tend to be recessive. These factors of genetic dominance are added to the complex genetic equation that our bodies use to determine our eye color. A green allele is dominant over a blue allele, and a brown allele is dominant over both green and blue alleles. For the bey 2 gene if a person has a brown allele then they will have brown eyes. In the gey gene the green allele is dominant over the blue allele, but it is still recessive next to a brown allele. All four alleles must be blue to produce a blue eyed person.
Another way of predicting the color of a child's eyes is to use the parent's eye color genes. In my family, my mother as well as my father has blue eyes. I am a one of three children they had. To be more exact, I am a triplet. There are two girls and one boy and we all have blue eyes. So to sum this up when both parents have blue eyes they will both have a pair of recessive genes for blue eye color. All of the children will therefore have blue eyes since there is no dominant gene present to mask the recessive gene.
Mother Father
Blue Eyes Blue Eyes…...

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