Ploidy refers to the number of complete sets of chromosomes in a cell. You’ll probably have heard of haploid (n, gametic cells) and diploid (2n, somatic cells) cells in the human body so this is just delving a little deeper.
The number of chromosomes in a cell (it’s genome) = x
Diploid cells (somatic cells) = 2x
Haploid cells (gametes of a diploid organism) = x
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