Will give
match the genetics terms with their description
p
f1
f2

true breeding parents
offspring off a cross between parents
offspring off a cross between both generations

P goes with true breeding parents.  The other two descriptions aren't quite right.  F1 refers to the offspring of P.  F2 refers to the offspring of F1.  The descriptions are already in the correct order.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.