DNA is composed of strands of nucleotides that
pair in regular patterns and are held together by
the forces shown in the diagram below.
Arb
POUP
Pidres
Su
Thy
What forces, represented by dotted lines, hold
together the two strands of DNA shown in the
diagram above? (3.2)
A. Ionic bonds
B. Covalent bonds
C. Hydrogen bonds
D. Carbon-carbon bonds​
