In PF find the answer in the First paragraph of "Analysis of Paul's case"
Answer: Individuated
False.
Females have 2 x chromosomes so the mother will always give the child an x chromosome. Males have an x chromosome and a y chromosome, so if the father gives the child an x chromosome, the child will be female. If the father gives the child a y chromosome, the child will be male. So, chromosomes from the father control whether the child is male or female.
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.