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Which amino acids are represented by a single codon ?

( A ) valine and histidine
( B ) leucine and alanine
( C ) serine and lysine
( D ) methionine and tryptophan

1 Answer

Ans: ( D ) methionine and tryptophan
Valine has GUU, GUC, GUA, GUG.
Histidine has CAU, CAC, leucine has CUU, CUC, CUA, CUG, Alanine has GCU, GCC, GCA and GCG, Serine has AGU, AGC, Lysine has AAA & AAG as codons, tryptophan has UGG and AUG for methionine.
answered Nov 3, 2016 by suganyadevi.p