The correct option is A Genetic
A zygote is formed by the fusion of sperm and ova. During formation of gametes, as a result of meiosis, sperms and eggs receive only half of the genetic material of the parent cells and thus, become haploid. When fertilization occurs, sperms and eggs become zygote which is diploid. In this way, both male and female parents contribute an exactly equal amount of genetic material to the offspring.