Consider the great diversity of genome size among organisms.As genome size increases, the relative proportion of noncoding DNA

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As genome size increases, the proportion of noncoding DNA increases. This is because the coding regions of DNA (genes) only make up a small portion of the whole genome, while noncoding regions such as introns, regulatory regions, and repetitive elements increase as the size of the genome increases. Therefore, the relative proportion of noncoding DNA steadily increases as genome size increases.

Consider the Great Diversity of Genome Size Among Organisms