Assertion: nucleotide's nucleobase | /r/HasProperty | uracil
Facets:
Source sentences:
text: Strings of nucleotides are bonded to form helical backbones—typically, one for RNA, two for DNA—and assembled into chains of base-pairs selected from the five primary, or canonical, nucleobases, which are: adenine, cytosine, guanine, thymine, and uracil.