What is the heredity of color blindness

summary

Color blindness, generally refers to the life can not distinguish a specific color of the disease, therefore, in order to help you understand the color blindness of this disease, this article next on what we are concerned about the genetic problems of color blindness are analyzed.

What is the heredity of color blindness

First of all, it is generally believed that red green color blindness is determined by two pairs of genes on the X chromosome, namely red blind gene and green blind gene.

Secondly: the genetic mode of red green color blindness is X-linked recessive inheritance. Men only have one X chromosome, so they only need one color blindness gene to show color blindness. Women have two X chromosomes. Therefore, if the offspring have color blindness symptoms, it means that there is a pair of pathogenic alleles, and there is an abnormal situation.

Finally: if a normal female marries a color blind man, the father's color blind gene can be passed on to their daughter along with the X chromosome, but not to their son. The daughter then passes the color blindness gene from her father to her son. This phenomenon is called cross inheritance.

matters needing attention

In the understanding of what is the genetic problem of color blindness, people with color blindness must pay attention to regular ophthalmic examination at ordinary times, and in the diet, to maintain a balanced, avoid partial diet.