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Pronounciation of 
cytosine

defined:

One of the four bases in DNA that make up the letters ATGC, cytosine is the "C". The others are adenine, guanine, and thymine. Cytosine always pairs with guanine.

explained:

Listen to a detailed explanation.

Dr. Robert Nussbaum, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines cytosine.

illustrated:

View illustration

related
terms:

base pair, deoxyribonucleic acid (DNA), ribonucleic acid (RNA), protein, genetic code (ATGC), nucleotide, guanine, uracil



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