There is a 50% probability that the child will be a boy. If this is the case, he will inherit the X chromosome from his mother and the Y chromosome from his father. Since the woman has DMD, the boy will certainly inherit the disease, since he only has one X chromosome and it carries the disease. We know that both of the mother's X chromosomes carry the disease because since it is recessive, both of her chromosomes must have it in order for her to have it.
There is also a 50% probability that the child is girl. If this is the case, she will inherit a normal X chromosome from her father and the disease-carrying X chromosome from her mother. Since the disease is recessive, she will not be affected by the disease, since she has one healthy X chromosome and one disease-carrying one.
If the child is a girl, there is a 0% chance that she will have the disease (although she will be a carrier).
If the child is a boy, there is a 100% chance that he will inherit the disease.
The answer is D)
Answer:
Cardiovascular is the correct option
Answer:
here you go!!
Explanation:
enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.
Answer:
The correct answer is - the equator.
Explanation:
The trade winds are the kind of wind that blows towards the equator from the southeast in the southern hemisphere or the northeast in the northern hemisphere, especially at sea.
The horse latitudes are present in both the northern hemisphere and southern hemisphere with calm air and occur between trade winds and the westerlies that move towards the equator.
