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A human zygote has just formed. How many chromosomes does it have?

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Question

A human zygote has just formed. How many chromosomes does it have?

Very Short Answer
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Solution

Human gametes each have 23 chromosomes. After fertilisation, the zygote has 23 + 23 = 46 chromosomes, i.e. 23 pairs.

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Chapter 11: Reproduction: How Life Continues - Think It Over [Page 222]

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NCERT Science Exploration [English] Class 9
Chapter 11 Reproduction: How Life Continues
Think It Over | Q 8. | Page 222
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