If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
Definite article is used before a noun (person place or thing) to indicate that the identity of the noun is known to the reader. indefinite article is used before a noun that is general or when its identity is not known.
