Question

Color-blindness is a X-linked recessive disorder. under what circumstances will manifest in a child?

A) if the child is a male and it's mother has the recessive allele
B) if the child is a female and it's father has the recessive allele
C) If the child is a female and it's mother has the recessive allele
D) If the child is male and it's father has the recessive allele​

Answer 1

A

Step-by-step explanation:

because males are XY and females are XX, if two people have a son, he will receive a Y chromosome from his father and an X chromosome from his mother, if one of her alleles is recessive color blindness, there is a chance he could be color blind.

Answer 2

Answer: A

Explanation: the gene can only be passed on the x gene, so if you are a male, you only have one x gene, so it dominates without the presence of another x gene