Molecular Basis of Inheritance Question 55
55. Which one of the following is the starter codon?
(a) AUG
(b) UGA
(c) UAA
(d) UAG
Show Answer
Answer : a
Hints & Solution
(a) The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met (fMet) in prokaryotes. The most common start codon is AUG.