Genetic

It is said that children "are like" a father or mother in some expressions or habits, especially on physical features such as nose shape, hair color, eye color, height ... All this due to genetics.

Genetics is the science that studies the process of biological inheritance and tells us how and why certain features persist in families. All human beings develop from a single cell, the fertilized egg that contains the information necessary for the production of physical and mental traits peculiar. The carrying 23 chromosomes like rods, and each pair consists of one mother and one father, each chromosome has thousands of genes that are deciding the child's physical appearance, such as blood type, eye color, hair, etc.