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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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1.

The triplet base sequence of tRNA nucleotides that is complementary to an mRNA codon (for a particular amino acid) is called :

  a retroposon

  a cistron

  an anticodon

  a transposon

  Half-n-half Clue
 

2.

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

  Diastase

  Deiodinase

  Phospholipase

  peptidyl transferase

  Half-n-half Clue
 

3.

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

  Ornithine decarboxylases

  beta-galactosidases

  phenylalanine hydroxylases

  aminoacyl-tRNA synthetases

  Half-n-half Clue
 

4.

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

  methionine

  serine

  lysine

  alanine

  Half-n-half Clue
 

5.

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 :

  Sutton-Boveri Hypothesis

  the Monkey-Man Hypothesis

  the Wobble Hypothesis

  the Levene's Hypothesis

  Half-n-half Clue
 

6.

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 trailer sequence

  a Kozak's consensus sequence

  a promoter sequence

  a Shine Dalgarno sequence

  Half-n-half Clue
 

7.

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 transposon

  a Shine Dalgarno sequence

  a poly-A-tail

  a spacer

  Half-n-half Clue
 


 
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