Question

Translocation factor in bacteria during translation is

• A. IF${}_2$
• B. oEF - 2
• C. EF - Tu
• D. EF - G

Answer 1

Answer: (D)

EF - G

• IF${}_2$ is the initiation factor of translation in prokaryotes which binds to 30S ribosomal subunit during initiation of translation.
• EF-Tu is the elongation factor that helps in binding of aminoacyl tRNA to the A site of the ribosomes.
• EF-G is the elongation factor that helps in the translocation of peptidyl tRNA from A site to the P site and the empty tRNA from the P site to E site. Hence, EF-G is also known as translocation factor.
  

So, the correct answer is 'EF-G'.