1) The bond is called peptide bonds
2) Due to polar peptide bonds between amino acids
3) Bending and twisting creates the cd structure. mine looked different the everyone else because I used different letters
4) It was created 2 or more polypeptides stuck together
5) No it changes because the amino acids will be different and the bonds will also change and the side chain would change too
Good - for 5 - the bonds between amino acids would be the same, but the interactions (sometimes includes bonding) between R groups / side chains would be different because of different placement of amino acids.
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