What type of bonds hold a DNA double helix together?
The two chains of a double helix are held together by hydrogen bonds between specific bases in each chain. A guanine base (G) is linked to cytosine (C) in the opposite chain with hydrogen bonds. Similarly, an adenine base (A) is linked to thymine base (T) in the opposite chain.
How many hydrogen bond are present between:
(i) A and T
(ii) C and G in a double helix structure?
