Which genetic variation occures during fertilization when the egg and sperm meet?

1 answer:

3 0

Answer: crossing over

during the process of fertilization, a sperm and egg join together to create a zygote. since a sperm had half the number of chromosomes and an egg has half the number of chromosomes, when they join together the zygote had a complete diploid set of chromosomes. the assortment of chromosomes and crossing over promotes genetic variation during the process of reproduction

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