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Transcription (RNA Synthesis)


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

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1.

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

  constitutive genes

  chimeric genes

  regulatable genes

  antibody genes

  Half-n-half Clue
 

2.

Due to the presence of Introns and Exons, in Eukaryotes the splicing process of pre-mRNA can lead to different ripe mRNA molecules and therefore to different proteins. This phenomenon is called :

  exonic splicing

  gene splicing

  alternative splicing

  intronic splicing

  Half-n-half Clue
 

3.

A collection of genes including one which acts as a switch that governs the expression of the structural genes in the collection is called :

  An Operon

  lac operon

  A regulon

  Does everything have to have a name ? ? ! !

  Half-n-half Clue
 

4.

The base sequence of the RNA strand transcribed from a DNA strand of the sequence T-G-C-A-G-C-A-C-A is :

  A-C-G-U-C-G-U-G-U

  A-C-G-U-C-G-U-G-U

  U-G-C-A-G-C-A-C-A

  G-U-A-C-U-A-C-A-C

  Half-n-half Clue
 

5.

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
 

6.

A segment of DNA that includes regions preceding and following the coding DNA ( introns as well as exons ) is called :

  operon

  retroposon

  cistron

  transposon

  Half-n-half Clue
 

7.

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
 


 
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