Hydrogen bonds?

Hydrogen bonds?



Hi guys!:) 
I would highly appreciate your help here:) 
Which of the following statements about hydrogen bonds are true? Select all that apply. 

Hydrogen bonds operate between neighbouring phosphate groups along the backbone of a DNA strand. 

Hydrogen bonds operate between different regions of the peptide backbone in a polypeptide. 

Hydrogen bonds may operate between the bases of neighbouring DNA strands. 

Hydrogen bonds operate between amino acid side chains in a polypeptide. 

Hydrogen bonds do not operate between different regions of an RNA molecule. 
correct 
Thank you very much





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