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Which four chemical bases make up human DNA?

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The impact of the Human Genome Project on cancer research — Human Genome Project The Human Genome Project, which operated from 1990 to 2003, provided researchers with basic information about the genetic content of the human organism, opening new avenues of discovery in fields such as cancer research.

The four chemical bases that make up human DNA are:

Adenine (A)
Thymine (T)
Guanine (G)
Cytosine (C)

These bases form the genetic code through their specific arrangements within the human genome. Within the DNA molecule, these bases pair together—adenine always pairs with thymine, and guanine always pairs with cytosine—to form the rungs of the double helix structure.1234