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DNA - Chromosomes - Genetic Engineering Royalty-Free Stock Image


DNA - Chromosomes - Genetic Engineering Stock Photo
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DNA - Chromosomes - Genetic Engineering #24635374
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Human chromosomes - Each chromosome consists of a DNA double helix bearing a linear sequence of genes, coiled and recoiled around aggregated proteins. Their number varies from species to species: humans have 22 pairs plus the two sex chromosomes (two X chromosomes in females, one X and one Y in males).