40. Short answer questions II

 

a. Mothers have an _____. Therefore, the sex of a newborn child does not determine by the mother chromosomes.

 

b. In women, there are two X chromosomes, making it a perfect pair.
However, in men, one is an X chromosome of normal size, while others are a _______.

c. In humans, children's sex is determined by the father's hereditary chromosome. The zygote becomes a female if its heritages X chromosomes. The _____ if it inherits the Y chromosome. All children receive an X chromosome from their mom, whether they are boys or girls.