20 Colors; Dna Has 4 Colors

a: Peptide ~
b: necklace made of coloured beads

What: "Peptides are like necklaces made of coloured beads - 20 or so types, each being a different amino acid. These can be structured into strings of up to 50. So you can have an almost infinite number of peptides - including insulin and leptin."

Writer: Peter Silverton
Date: May 13 2013 12:38 PM

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