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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.

The triplet base sequence in DNA that is translated into a stop codon, whose corresponding tRNA anticodon, is AUU is given by :

  GCC

  TAA

  ATT

  CGG

  Half-n-half Clue
 

2.

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
 

3.

Prokaryotes use 70S ribosomes which consist of :

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

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

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

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

  Half-n-half Clue
 

4.

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

  5

  4

  7

  6

  Half-n-half Clue
 

5.

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

  beta-galactosidases

  Ornithine decarboxylases

  aminoacyl-tRNA synthetases

  phenylalanine hydroxylases

  Half-n-half Clue
 

6.

The process of translating mRNA into protein occurs...

  inside the Peroxisomes

  within the nucleus

  inside the Lysosomes

  at the ribosomes

  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 poly-A-tail

  a transposon

  a spacer

  a Shine Dalgarno sequence

  Half-n-half Clue
 


 
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