Haploid and Diploid Chromosome Numbers in Gametes: Key to Sexual Reproduction

the number of chromosomes in a gamete is represented by what?

n

The number of chromosomes in a gamete is represented by “n”. This refers to the haploid number of chromosomes which is half the number of chromosomes in a somatic (non-reproductive) cell. For example, in humans, the diploid number of chromosomes in a somatic cell is 46 (23 pairs), while the haploid number in a gamete is 23. This is important in sexual reproduction because when a haploid sperm fertilizes a haploid egg, the resulting zygote will have the diploid number of chromosomes necessary for normal development.

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