Translation Process and Genetic Code Quiz

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What is the role of release factor (RF) proteins during translation termination?

Recognize the stop codon and cleave the polypeptide from the final tRNA (correct)

Form the initiation complex

Help in peptide bond formation

Recognize the start codon

Which antibiotics selectively inhibit bacterial translation by interacting with ribosomes?

Tetracycline

Penicillin

Cycloheximide

Streptomycin (correct)

What is the function of Shine-Dalgarno sequence in prokaryotic mRNA?

Interact with 30S subunit (correct)

Interact with 60S subunit

Recognize the stop codon

Facilitate peptide bond formation

What is the primary role of peptidyl transferase activity of 23S rRNA during translation?

Hold the growing peptide chain and form peptide bonds Signup and view all the answers

Which antibiotics inhibit elongation during translation?

Chloramphenicol Signup and view all the answers

What is the function of stop codons UGA and UAG in protein synthesis?

Code for amino acids Selenocysteine and Pyrrolysine Signup and view all the answers

What is the role of the start codon in translation?

Marks the beginning point of translation Signup and view all the answers

How many different tRNAs are specifically related to both a codon and an amino acid?

60 Signup and view all the answers

What does the term 'codon degeneracy' refer to in the context of the genetic code?

The ability of certain codons to match with multiple amino acids Signup and view all the answers

Why is the open reading frame (ORF) important in RNA translation?

It ensures accurate reading of three-nucleotide codons Signup and view all the answers

Which nucleotide sequence is critical for breaking RNA into readable triplet codes?

ORF Signup and view all the answers

What is the function of stop codons in the genetic code?

Indicate the end of translation Signup and view all the answers

What is the main function of a Pribnow box in transcription process?

Initiating transcription Signup and view all the answers

In transcription termination, what is the role of intrinsic terminators?

Forming stem-loop structures in RNA Signup and view all the answers

What is the main difference between intrinsic terminators and Rho-dependent terminators?

The involvement of Rho protein Signup and view all the answers

What does an operon primarily regulate in gene expression?

mRNA transcription Signup and view all the answers

What is the purpose of a P site during translation in protein synthesis?

Elongating the polypeptide chain Signup and view all the answers

Which of the following correctly represents a stop codon in the genetic code?

UAA Signup and view all the answers