00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| pyrimidine base that's one of the principal components of DNA |
| smallest units of organic compounds |
covalent co·va·lent (kō-vā'lənt)
adj.
Of or relating to a chemical bond characterized by one or more pairs of shared electrons.