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Why is the number of chromosome in a zygote diploid?

Answer 1

Because, it’s the product of fusion of two haploid cells.

A zygote is a eukaryotic cell formed by a fertilization event between two gametes. Gametes are haploid.

Male gamete is called sperm and female gamete is called egg.

E.g. Human sperm cell and egg cell contain #23# chromosomes each. After fertilisation, zygote formed will contain #46# chromosomes.

#"23 (sperm) + 23 (egg) = 46 (zygote)"#

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Answer 2

Maya Anderson

The number of chromosomes in a zygote is diploid because it results from the fusion of two haploid gametes during fertilization, one from each parent, combining to form a complete set of chromosomes.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.