noun🔗ShareCytosineA heterocyclic base, 4-aminopyrimidin-2(1H)-one, which pairs with guanine in DNA and RNA (by means of three hydrogen bonds)."In the DNA sequence, cytosine always pairs with guanine, like two puzzle pieces fitting together. "Dans la séquence d'ADN, la cytosine s'apparie toujours à la guanine, comme deux pièces de puzzle qui s'emboîtent.chemistrybiologybiochemistrycompoundsubstanceChat with AIVocabulary GamePractice Reading
