Question

In bacteria, the codon AUG stands for
A.Glycine
B.Methionine
C.N-formyl methionine
D.Both B and C

Answer 1

Hint:-Prokaryote genomes display a wide scope of GC substance and codon use, both coming about because of communication between mutational predisposition and characteristic choice.This is a codon explicit to the amino acid methionine, which is almost consistently the main amino acid in a polypeptide chain.

Complete Answer:-- The cycle of translation i.e protein amalgamation includes three cycles initiation, elongation, and termination.
- The amalgamation of all proteins begins with a similar amino corrosive: methionine. In eubacteria, the main amino acid in a recently orchestrated polypeptide is N-formylmethionine.
- Anyway, formylation isn't necessary on the grounds that non-formylated methionine can work as an initiator amino acid.
- Eukaryotes and archaea additionally use methionine as a starting amino acid, however, it isn't formylated methionine.
- In eubacteria, for example, E.coli, AUG, and GUG and on uncommon events, UUG fill in as commencement codons.
- At the point when one of these trios is available in the inception position, it is perceived by N-formyl Met-t-RNA and N-formylmethionine shows up as the main amino acid in the chain.
- The significance of AUG and GUG codons relies upon their unique circumstance. At the point when the AUG codon is utilized for inception, it is perused as formyl-methionine; when utilized inside the coding district, it speaks to methionine.
- Additionally, when GUG codon fills in as a commencement codon, it is perused as formylmethionine. Commencement in the eukaryotic cytoplasm quite often utilizes AUG as the initiator.

So, the correct answer is “option- C”

Note:- The translation is a cycle by which the hereditary code contained inside a courier RNA (mRNA) particle is decoded to create a particular arrangement of amino acids in a polypeptide chain.
For translation to start, the beginning codon 5'AUG must be perceived.