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A group of round plates with different colors of bacteria. | Premium AI-generated image
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Human DNA is a molecule that contains the genetic instructions for making a human. DNA is made up of four chemical bases, called nucleotides, which are linked together in a sequence. The sequence of nucleotides in a DNA molecule is unique to each person.
A small lesson from biology about DNA, or deoxyribonucleic acid. It is the genetic material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most of...