Q52 of 58 Page 71

Distinguish between a gamete and zygote. Explain their roles in sexual reproduction.



















Gamete



Zygote



It is sex cell or germ cell that takes part in fertilisation.



It is a product of fertilisation.



It is two types: Male gamete and female gamete



It is one type



It carries characteristics of only one parent.



It carries characteristics of both the parents.



Role of gamete in sexual reproduction: Gamete formation results in halving of number of chromosomes which is necessary to maintain the number of chromosomes in an organism which reproduces sexually.


Role of zygote in sexual reproduction: Zygote formation makes the number of chromosome equal to the normal body cells. After fertilization, zygote divides several times to form an embryo and subsequently a new individual.


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