<prompt> Order of increasing polarity: A. Alanine B. Valine C. Glycine D. IsoleucineD- B- A-CB- C- A-DA- D- C-BD-A- B-C  <response>: All aliphatic amino acids i.e. Glycine, Alanine, Valine, Leucine and Isoleucine are non-polar. Isoleucine is most non polar, followed by valine. Glycine is least non-polar out of all aliphatic amino acids. 