3.
a punnett square has letters at to the top and left sides of the grid. what cellular process is represented by these letters?

monohybrid

fertilization

meiosis

mitosis

A monohybrid :is a hybrid that is heterozygous with respect to a specified gene.
 Fertilization: the action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote.
Meiosis: a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
Mitosis: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
 
Hope that helped :)

Yes it is hereditary because of the penis