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All organisms have the same genetic code, restriction enzymes can cut DNA from all species, and two double helices can be ligated from different sources.
What parts of DNA make it up?
DNA's building units are chemical compounds called nucleotides. These building blocks consist of three elements: one of four possible nitrogen bases, phosphate groups, and sugar groups. The phosphate and sugar groups are alternated when nucleotides are linked together to form chains, which is how DNA strands are built.
How does DNA serve a purpose?
Information is stored in DNA. It contains data necessary to produce proteins, which are other big molecules. The 46 lengthy structures known as chromosomes that make up each of your cells house these instructions. Many thousands of smaller DNA pieces, known as genes, make up these chromosomes.
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