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alpha-helix is a secondary structure of ...

`alpha-`helix is a secondary structure of proteins formed by twisting of polypeptide chain into right handed screw like structure. Which type of interactions are responsible for making the `alpha`-helix structure stable?

A

Peptide bonds between - `NH_2` group and `CO` groups of adjacent carbon chains

B

Hydrogen bonds between - NH of amino acid in one turn with - CO of amino acid to adjacent turn

C

`-OH` group of one turn with -CO of amino acid on the turn

D

Hydrogen bonds between adjacent amino acids

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The correct Answer is:
B
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