Haploid sperm and egg are produced via meiosis. what process is responsible for producing the 2n zygote? a) differentiation b) fertilization c) replication d) transcription

The process that produces the 2N or diploid chromosomes number in ANY organism that reproduces sexually is fertilization.

Meiosis produces sex cells or gametes that are N. When gametes unite, as seen here, during fertilization, the 2N number is restored.

B) fertilization

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.