Father and son are color-blind, and mother is color-blind. Is it correct to say that in this family

Father and son are color-blind, and mother is color-blind. Is it correct to say that in this family the son inherited his disadvantage from his father?

As you know, the gene that causes the inability to distinguish some shades of colors, or the gene for color blindness, is inherited by being linked to the X chromosome.
A woman has two such chromosomes, a man has one. Consequently, the son inherits the gene that leads to color blindness from the mother, since from the father he inherits the Y chromosome, which determines his gender. In order for a son with color blindness to be born in the described family, the mother must be heterozygous for the gene for this recessive trait. Let’s write the mother as XDXd, the color-blind father as XdY. Children in this family can be as follows: boys with color discrimination (XDY) – 25%, boys – color blind (XdY) – 25%, girls with normal color discrimination (XDXd) – 25%, girls with color blindness (XdXd) – 25% …



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.