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Translation


This quiz is based on the process of translating mRNA (produced in the nucleus) into protein.

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Multiple choice

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1.

How many amino acids are encoded by the following mRNA sequence : UAUCAUCCACUUGGUUGA ?

  6

  4

  7

  5

  Half-n-half Clue
 

2.

The enzyme that forms a peptide bond between adjacent amino acids in the ribosome during translation is called :

  peptidyl transferase

  Deiodinase

  Phospholipase

  Diastase

  Half-n-half Clue
 

3.

Synthesis of proteins can take place quickly by multiple ribosomes being able to attach themselves to one mRNA chain. An mRNA chain with multiple ribosomes is called :

  a lysosome

  a peroxisome

  a polysome

  a centrosome

  Half-n-half Clue
 

4.

Some tRNAs can recognize more than one codon because there is a relaxation of the complementation rule of base pairing between the anticodon and codon in the third position (of the codon sequence). This relaxation is called :

  the Levene's Hypothesis

  the Monkey-Man Hypothesis

  Sutton-Boveri Hypothesis

  the Wobble Hypothesis

  Half-n-half Clue
 

5.

Which of the following statements is correct ?

  Methionine is found at the N-terminus of nearly all newly synthesised eukaryotic proteins.

  Each mRNA molecule is usually translated into, hundreds of copies of a single polypeptide chain.

  In prokaryotes, both transcription and translation take place in the same part of the nucleus.

  All of the above.

  Half-n-half Clue
 

6.

Prokaryotes use 70S ribosomes which consist of :

  a (small) 10S and a (large) 60S subunit

  a (small) 40S and a (large) 60S subunit

  a (small) 40S and a (large) 30S subunit

  a (small) 30S and a (large) 50S subunit

  Half-n-half Clue
 

7.

The base inosine is usually found in :

  hnRNA

  tRNA

  mRNA

  rRNA

  Half-n-half Clue
 


 
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