All of the Following Statements Concerning DNA Are Correct EXCEPT

Multiple Choice

All of the following statements concerning DNA are correct EXCEPT

A) Base-stacking involves the interaction of aromatic pi-electron orbitals and contributes to the stability of the double helix.
B) Denatured DNA shows an increased extinction coefficient at 260 nm as compared to double-stranded DNA.
C) DNA that is rich in G and C shows a higher melting temperature.
D) The nucleotides are joined through glycosidic bonds.
E) The two strands have opposite polarity (5'->and >5') .