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Transcription (RNA Synthesis)


This quiz is based on the process of Transcription (RNA synthesis).

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Multiple choice

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1.

A RNA transcript (whose base sequence is complementary to that of the mRNA of a gene) that can inhibit the expression of a gene by forming a duplex with the mRNA strand is called :

  antisense RNA

  tRNA

  dsRNA

  rRNA

  Half-n-half Clue
 

2.

The lac repressor protein binds to the operator region...

  in the absence of lactose

  in the presence of lactose

  in the presence of cAMP

  in the absence of glucose

  Half-n-half Clue
 

3.

The bacterial promotor sequence usually found at the -10 position (ten base pairs upstream of the transcription start site) is :

  TATAAT

  TATTAT

  TTGACA

  TAGACA

  Half-n-half Clue
 

4.

The process by which messenger RNA is synthesized by complementary base pairing of ribonucleotides with deoxyribonucleotides to match a section of DNA (a gene) is called :

  Translation

  Replication

  Transcription

  I have no idea ! !

  Half-n-half Clue
 

5.

Genes that are expressed at all times and under all conditions of growth are called :

  regulatable genes

  antibody genes

  constitutive genes

  chimeric genes

  Half-n-half Clue
 

6.

Sections of DNA within a gene that do not encode part of the protein that the gene produces are called :

  intein

  Transposons

  Exons

  Introns

  Half-n-half Clue
 

7.

An RNA molecule that can catalyze either its own cleavage (self-splicing) or the cleavage of other RNA molecules is :

  An inducer

  A chaperone enzyme.

  A spliceosome

  A ribozyme

  Half-n-half Clue
 


 
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