Red green color blindness is what chromosomes are inherited on

Red-green blindness in humans:1. Red-green color blindness: It was discovered by Dalton, so it is also known as Dalton's syndrome.

It is inherited in a way that is associated with X recessive genetic disease.

2. Genotypes and phenotypes of normal color vision and red-green color blindness in people:

Knowledge Dial:Genetic characteristics of red-green color blindness:

1. There are more male patients with color blindness than female patients, because women can only get sick with two XBs, and men can get sick with one XB.

2. Cross-inheritance.

3. A woman will suffer from her father and son.

Inheritance of red-green color blindness:

1. Marriage between a normal woman and a colorblind man**: The color blindness gene of a man can only be passed on to his daughter, not to his son.

2. Marriage between female carriers and normal men**: The color blindness gene of boys can only come from their mothers.

Red-green color blindness is recessive inheritance on the X chromosome. The father's red-green color blindness gene is not passed on to the son, only to the daughter. Mothers are sons and daughters. If the son is color blind, it must be from the mother. Daughters are all possible.

Red-green color blindness is recessive inheritance on the X chromosome.

It is the recessive inheritance of the sex chromosomes that Dalton first discovered.

Red-green color blindness is inherited recessively on the X chromosome. If the mother is sick and the father is normal, then the son must be sick and the daughter must not be sick. Because the male sex chromosome is XY and the female is XX.

You can draw a diagram, the diseased recessive gene is represented by a, and the non-diseased dominant gene is represented by a, written in the upper right corner of x, and then the combination of xx and xy can be seen at a glance. The first question for a medical student, I don't know if I made it clear.

The genetic principle of red-green color blindness is that the gene that determines the disease is recessive and is located on the X chromosome. Male patients have a gene of XBY, while female patients have a genotype of XBXB and a female genotype of X (superscript) BXB. Thus, if a male patient is married to a normal woman, the sons are normal and the daughters are carriers.

There are far more male patients than female patients. Because patients with red-green color blindness cannot distinguish between red and green, they are not suitable for work in fine arts, chemical engineering, and other jobs that require color vision sensitivity from the chakra.

For example, in transportation, if the staff is color blind, they cannot distinguish the color signal number cover, resulting in serious traffic accidents. The organ associated with color blindness is the cone cells on the membrane of the retina of the eye.

1 Congenital color blindness is often chained recessive, and is closely related to sex, because the inherited gene is on the sex chromosome, in general, the probability of male color blindness is much greater than that of female. And because the gene is recessive, a person with a color blindness gene may only be a carrier and not develop the disease, but he can pass the gene on to the next generation.

2 Generally speaking, the normal chromosome for males is (xy), the normal chromosome for females is (xx), the performance genes of dominant color blindness and recessive color blindness (color blindness gene carriers) are on sex chromosome x, congenital color blindness is chained recessive inheritance, so as long as a male gets a recessive color blindness gene, it can be manifested as color blindness, and a female gene is obtained from both parents, so even if you get a recessive color blindness gene, as long as the other gene is normal, you will become a color blindness gene carrier, without exhibiting color blindness.

3 When a normal male marries a colorblind woman, the incidence of color blindness is 1 2 for boys and 1 2 for girls who are recessive color blindness (carriers of the color blindness gene).

The incidence of recessive color blindness in a normal male married to a female color blind gene carrier is 1 4 in boys and 1 4 in girlsMen with color blindness marry normal women, and none of their children develop overt color blindness, but the incidence of implicit color blindness is 1 2.

Men with color blindness who marry women with color blindness gene carriers have a prevalence of 1 4 in women, males, and latent colors.

When a color-blind man marries a color-blind woman, the children born to him are inevitably colorblind.

4 In China, the rate of male color blindness, the rate of female color blindness, and the rate of color blindness gene carriers. In contrast, the incidence of congenital color blindness is about for males and females. Because color vision is generally not used as a condition for mate selection at the time of marriage, it is completely random, so the incidence of color blindness generally remains stable.

1) If a female (homozygous) with normal color vision marries a male with red-green color blindness, the son's color vision will be normal in their offspring; Although the daughter behaves normally, she is a carrier of the red-green color loss gene because she received a red-green color loss gene from her father, in which case the father's red green color loss gene is passed on to the daughter along with the X chromosome, but it must not be passed on to the son.

2) If the carrier of the red-green color loss gene in females and a normal male marry, among their offspring: the son has 1 2 normal and 1 2 red green color blindness; None of the daughters are colorblind, but 1 2 are carriers of the red-green color blindness gene. In this case, the son's red-green color blindness gene must have been passed down from his mother.

3) If a female carrier of the red-green color loss gene marries a male patient with red-green color blindness. Among their offspring: 1 2 daughters are normal, but all are carriers, and 1 2 are red-green color blind; The son has 1 2 normal and 1 2 is red-green color blind; In this case, the daughter's red-green color blindness gene comes half from the mother and half from the father; And the son's red-green color blindness gene must have come from his mother.

4) if a female patient with red-green color opallopsis marries a normal male, among their offspring; The daughters are normal, but they are carriers, and the sons are all red-green color blind. In this case, it was the mother who passed the red-green color blindness gene to her son along with the X chromosome. Through the analysis of the above four mating results, we can see that the red-green color blindness gene in a male is passed from the mother to his daughter.

It can be seen that the red-green color blindness gene is transmitted from female to male. This genetic trait is called cross-inheritance in genetics.

It depends.

Red-green color blindness is associated with x recessive inheritance.

Dad is red-green color blind, so the genotype is: xby; I don't have color blindness, so the genotype is: xbxb.

If your husband is normal (xby), then the probability that your baby is colorblind is: the chance of a boy is 1 2;The chance of a baby girl is 0

If your husband is also colorblind (xby), the probability that your baby is colorblind is 1 2 in a boyThe odds of a baby girl are 1 2

For the sake of the baby's health, it is recommended to go to a regular hospital for consultation, and it is not too late to make further plans. I wish you a happy family!

Red-green color blindness is an X-chromosome recessive disorder in which the paternal genotype is color blind, the mother has a normal phenotype, and there is a 1 3 probability that a daughter will be a carrier (multiply the odds by 1 3 in uncertain cases).

The probability that a carrier female and a normal male are colorblind is 1 2, and that a girl is not colorblind; And the probability of having a boy with color blindness is 100% and giving birth to a girl is 1 in 2

Females are not carriers and normal males have a 1 2 chance of giving birth to a boy, and having a girl is not colorblind; None of the children born to men with color blindness are colorblind, but girls are half the time carriers.

It depends on whether your mother is or not, and your husband, if neither of them are either, there may be a probability of 1 8.