Haploid Gametes and Diploid Zygotes

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Last updated 4:34 AM on 3/30/26
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7 Terms

1
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What does diploid (2n) mean?

An organism/cell with two copies of every chromosome, one inherited from each parent.

2
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What does haploid (n) mean?

A cell containing only one copy of each chromosome.

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What is the haploid chromosome number in humans?

23 chromosomes.

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What is the diploid chromosome number in humans?

46 chromosomes.

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What is a gamete?

A mature reproductive cell that carries half the genetic material required for reproduction.

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What happens during fertilisation in sexual reproduction?

Male and female haploid gametes fuse to form a diploid zygote.

<p>Male and female haploid gametes fuse to form a diploid zygote.</p>
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Why do sexually reproducing organisms produce haploid gametes?

So the diploid chromosome number is restored after fertilisation.