X-linked dominant
Y-linked dominant
X-linked recessive
Y-linked recessive
A man with a genetic disease marries a woman who does not carry the disease. It is not possible for their sons to have the disease. The disease must be--- i forgot to post thequestiong XD OMG
If the woman does not even carry the disease, there are no disease genes to pass down to either boys or girls. If the man's gene is x-linked (recessive or dominant), it can only be passed to his girls.
X-linked dominant inheritance refers to a pattern of inheritance where a gene mutation on the X chromosome leads to a dominant trait or condition. In this case, both males and females can be affected, but males are more commonly affected due to having only one X chromosome. If a female inherits the mutated gene, she has a 50% chance of passing it on to each of her children, regardless of their sex.
Y-linked dominant inheritance occurs when a gene mutation on the Y chromosome is responsible for a dominant trait or condition. Since the Y chromosome is only present in males, only males can be affected by Y-linked dominant conditions. If a male has a Y-linked dominant condition, he will pass it on to all of his male offspring.
X-linked recessive inheritance occurs when a gene mutation on the X chromosome leads to a recessive trait or condition. In this case, males are more commonly affected because they only have one X chromosome. Females can also be affected if they inherit two copies of the mutated gene (one from each parent). If a female inherits a single copy of the mutated gene, she is considered a carrier and can pass it on to her children. However, in order for a male to be affected, he only needs to inherit a single copy of the mutated gene from his mother.
Y-linked recessive inheritance refers to a pattern of inheritance where a gene mutation on the Y chromosome leads to a recessive trait or condition. Since the Y chromosome is only present in males, only males can be affected by Y-linked recessive conditions. If a male is affected, he will pass it on to all of his male offspring.