Talking Glossary of Genetic Terms

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Lawrence C. Brody, Ph.D. defines Uracil

Uracil

YOOR uh sil

Uracil (U) is one of four chemical bases that are part of RNA. The other three bases are adenine (A), cytosine (C), and guanine (G). In DNA, the base thymine (T) is used in place of uracil.

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