EvolutionHard

Question

Which one of the following pairs is correctly mached with regard to the codon and the amino acid coded by it ?

Options

A.UUA-valine
B.AM-lysine
C.AUG-cysteine
D.CCC-alanine

Solution

Valine is one of 20 proteogenic amino acids. Its codons are GUU, GUC, GUA and GUG. Cysteine codons are UGU and UGC. With a thiol side chain, cysteine is classified as a hydrophillic amino acid. Alanine codons are GCU, GCC, GCA, and GCG, It is classified as a non - polar amino acid .L-alanine is second only to leucine. Lysine conons are AAA and AAG.Lysine is a base, as are arginine and histidine.

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