Can children with normal parents be color blind?

Color blindness is a very serious infectious disease, and it is very troublesome for patients. Although we cannot see the defects of color-blind people from their appearance, we can see from their clothing that their aesthetic views are different from those of normal people. In genetics, it is generally divided into dominant genetic genes and recessive genetic genes. So, will children with normal parents get color blindness?

Color blindness is a genetic disease, which manifests as the patient's inability to recognize a certain type of color, or the ability to recognize colors is worse than that of ordinary people. It is an X-linked recessive trait, and is generally passed on from mother to son. Women who carry the color blindness gene have a 50% risk of giving birth to boys with the disease, who may develop symptoms of red and green color blindness. Girls have a 50% chance of carrying the disease-causing gene.

Color blindness is the inability to distinguish any color or a certain color in the natural spectrum. Why do people become color blind? I believe that everyone who has heard the Dalton story knows that color blindness is inherited. If the father is red-green color blind and the mother is normal, the boys born will be normal and the girls will all be carriers of the color blindness gene; if both parents are red-green color blind, then both the son and the daughter will become color blind.

Color blindness is a congenital genetic disease, and most of the patients are males. If you want to avoid passing color blindness to the next generation, you should first make a careful choice of spouse. If a male is color blind, he needs to marry a normal female. The boys they give birth to are normal, and the girls are carriers of the color blindness gene. Let’s take a look at the rules of inheritance of color blindness.

1. The male is normal and the female is a carrier: When a normal male and a female carrier get married, their daughter has a 1/2 chance of being normal and a 1/2 chance of being a carrier of the color blindness gene; their son has a 1/2 chance of being normal and a 1/2 chance of being color blind.

2. The male is normal and the female is color blind: If a color-blind female marries a normal male, all the sons will be color blind, and all the daughters will be carriers of the color-blind gene.

3. Color blind male and normal female: When a color blind male marries a normal female, their sons will all be normal, and their daughters will all be carriers of the color blindness gene.

4. Men are color blind, women are color blind. All the offspring, both male and female, will be color blind.