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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.

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 centrosome

  a peroxisome

  a polysome

  a lysosome

  Half-n-half Clue
 

2.

The process of translating mRNA into protein occurs...

  inside the Lysosomes

  inside the Peroxisomes

  within the nucleus

  at the ribosomes

  Half-n-half Clue
 

3.

tRNA molecules are linked to their respective amino acids by enzymes called :

  Ornithine decarboxylases

  beta-galactosidases

  aminoacyl-tRNA synthetases

  phenylalanine hydroxylases

  Half-n-half Clue
 

4.

In prokaryotic mRNA, a particular base sequence (AGGAGGU) exists near the AUG start codon. This sequence which is sometimes referred to as the ribosome binding site is known as :

  a promoter sequence

  a Shine Dalgarno sequence

  a Kozak's consensus sequence

  a trailer sequence

  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.

A sequence of about 5 to 20 bases seperating one stop codon from the next start codon in a polycistronic prokaryotic mRNA molecule is called :

  a Shine Dalgarno sequence

  a spacer

  a poly-A-tail

  a transposon

  Half-n-half Clue
 

7.

Every polypeptide chain formed in translation starts with the amino acid :

  serine

  alanine

  methionine

  lysine

  Half-n-half Clue
 


 
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