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A patient has a genetic disease where a hydrophilic amino acid was substituted for a hydrophobic amino acid. Which of the following amino acid residues would have been replaced by the hydrophilic one?

A. Asparagine

B. Isoleucine

C. Lysine

D. Serine

E. Aspartate

lysine?

bbb

bbbb

yes
Answer B.
Isoleucine has a branched hydrophobic side chain