The
molecule that encodes
genetic information.
DNA is a double-stranded molecule held together by weak bonds between
base pairs of
nucleotides. The four nucleotides in DNA contain the bases:
adenine (A),
guanine (G),
cytosine (C), and
thymine (T). In
nature, base pairs form only between A and T and between G and C; thus the base sequence of each single strand can be deduced from that of its partner.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.