Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
Which of the following is an initiation codon?
A
$\text{UAG}$
B
$\text{AUC}$
✓
$\text{AUG}$
D
$\text{CCU}$
✓
Answer
Correct option: C.
$\text{AUG}$
In a $\text{DNA}$ or $\text{RNA}$ molecule, a codon is a three$-$nucleotide sequence that together form a unit of genetic code.
The first codon in transcribed $\text{mRNA}$ to undergo translation, $\text{AUG,}$ is known as the $\text{START}$ codon.
Hence, $\text{AUG}$ is the initiation codon.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.