In the case of eye color, brown is the dominant gene while blue is recessive gene. But if you have a situation where you get one copy each of curly and straight hair, you get a mixture of the two which is neither curly nor straight but is wavy instead.ДЄ gene is called dominant when it is often seen and a recessive gene is one that doesnвЂ™t appear as often or disappears completely. If you receive two copies of curly version, you get curly hair, and if you receive two copies of straight hair, you are likely to have straight hair. You could have either curly or straight hair which are expressed by letters C and S. However, if you happen to receive bb combination, you are likely to have blue eyes as you have received recessive trait from both the parents. In case of Bb, you have one dominant and other recessive gene, so you still end up as having brown eyes. So in all probability you will have brown eyes. In case of BB, you got brown copy from both father as well as mother. So you could have a BB, Bb, or bb versions of genes. A dominant gene is represented in capital whereas a recessive gene is represented in small letter. Now as far as eyes are concerned, brown eyes have dominant genes while blue eyes have recessive genes. For example, if your mother has blue eyes, and your father has brown eyes, you will have a copy of brown eyes from father and blue eyes from your mother. For every physical trait, you receive two copies of the gene, one from your father, and the other from your mother. The words dominant and recessive are encountered in the study of biology, particularly physical traits in the study of genetics.

Recessive or dominant traits