Hemophilia is carried on the X chromosome. If it is passed on to a son it came from its mother. If a daughter inherits it it could have came from either parents or even both. If from the father he himself would have been a hemophiliac. Hope this helps.
Answer:
Male and female gametophytes
They found fossils and rocks that did not fit the climate they should have ben found in.
Answer:
Substance B is a group of hydroxide ions.
Explanation:
I think the answer is the moon in its orbit around the Earth
