Question

В каком случае у мижчины дальтоника может радится внук дальтоник

Answer 1

Если его гены будут во внуке

Answer 2

Explanation of Daltonism and Inheritance

Daltonism, also known as color blindness, is a genetic condition that affects a person's ability to perceive certain colors. It is more common in men than in women because the genes responsible for the most common types of color blindness are located on the X chromosome.

Inheritance of Daltonism

Daltonism is inherited in an X-linked recessive manner. This means that the gene responsible for the condition is located on the X chromosome. Since men have only one X chromosome (XY), they are more likely to express the trait if they inherit the gene for color blindness. Women, on the other hand, have two X chromosomes (XX), so they are less likely to express the trait unless they inherit two copies of the gene.

Likelihood of a Daltonian Man Having a Color Blind Grandson

If a man with Daltonism (color blindness) has a daughter who is a carrier of the gene for color blindness, there is a possibility that his grandson could be color blind. This is because the daughter, as a carrier, can pass on the X chromosome with the gene for color blindness to her son. Since the son receives his single X chromosome from his mother, if that X chromosome carries the gene for color blindness, he will be color blind.

In summary, if a man with Daltonism has a daughter who is a carrier of the gene for color blindness, there is a chance that his grandson could be color blind.