Distinguish between a gamete and zygote. Explain their roles in sexual reproduction.
Ans
ROLE OF GAMETES AND ZYGOTE IN SEXUAL REPRODUCTION:
Gametes are the product of meiosis and hence carry half the chromosome number as that of parent cells. This chromosome number is restored during fertilization and zygote formation. Hence, gamete and zygote are the two phases of sexually reproducing organisms that help maintain the constant chromosome number in each species.