X - linked traits appear more often in males because males only have one x chromosome. One copy of an x - linked trait is all that a male would need to possess that trait. Females have two x chromosomes, so they would require 2 copies of the x - linked trait in order to possess it.
D. In a structure of the female reproductive system.
Answer:blood contain more red blood cells and less white blood cells
Explanation:red blood cells percentage 45%