Question

in a DNA double helix the bases are held together by hydrogen bonds these hydrogen bonds are​

Answer 1

hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases,

sugars, and phosphate groups (both within each component and between components).

Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.

Answer 2

In DNA double helix the bases are held together by hydrogen bonds these hydrogen bonds are covalent.

• Hydrogen bonds strongly bind the bases, sugars and phosphate group between the two strands.
• Two strands are held together by hydrogen bonding between the complementary base pairs.
• Adenine binds with thiamine while guanine binds with cytosine.
• Adenine forms two hydrogens bonds with thiamine while guanine forms three hydrogen bonds with cytosine.
• The hydrogen bonds along with vanderwaal forces provide stability to the DNA double helix.