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1. What type of bonding helps in stabilising the α – helix structure of proteins?

2. What is nucleotide?

1 Answer

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1. Inter molecular hydrogen bonding between -NH group of each amino acid and carbonyl group of an adjacent turn of the helix. 

2. The repeating structural units of nucleic acids are called nucleotides.

  • Pentose sugar + Base → nucleoside 
  • Nucleoside + Phosphoric acid → nucleotide

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