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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