Assertion: nucleotide | /r/MadeOf | cytosine
Facets:
Source sentences:
text: (1) DNA, located in the cell nucleus, is made up of nucleotides that contain the bases adenine (A), thymine (T), guanine (G), and cytosine (C).
text: For example, this would occur when one nucleotide containing cytosine is accidentally substituted for one containing guanine.