Which of the following is the smallest RNA

1.  mRNA

2.  tRNA

3.  cRNA

4.  rRNA

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4
Correct Answer :

tRNA


Explanation :
No Explanation available for this question

Transcription is most similar to

1.  chemiosmosis

2.  DNA replication

3.  facilitated transport

4.  translation

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4
Correct Answer :

DNA replication


Explanation :
No Explanation available for this question

Hormone responsible for plant and seed dormancy during drought is:

1.  IBA

2.  NAA

3.  ABA

4.  Zeatin

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4
Correct Answer :

ABA


Explanation :
No Explanation available for this question

The sequences of nucleotides in yeats, a little away from the starting point, which are responsible for transcription are

1.  TGTG AAA

2.  TAT GGG

3.  TATAAAA

4.  GAGAAAA

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4
Correct Answer :

TATAAAA


Explanation :
No Explanation available for this question

Growth regulator ethylene is used for:

1.  Retarding ripening of tomatoes

2.  Speeding up ripening of fruits

3.  Slowing down ripening of apples

4.  Both B and C

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4
Correct Answer :

Speeding up ripening of fruits


Explanation :
No Explanation available for this question

The terms cistron, recon and muton were proposed by

1.  Bateson

2.  J Lederberg

3.  S Benzer

4.  TH Morgan

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4
Correct Answer :

S Benzer


Explanation :
No Explanation available for this question

The term genome is used for the

1.  diploid set of chromosomes

2.  polyploidy set of chromosomes

3.  triploid set of chromosomes

4.  haploid set of chromosomes

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4
Correct Answer :

haploid set of chromosomes


Explanation :
No Explanation available for this question

During protein synthesis, a ribosome moves from 5´ to 3´ end of mRNA to recognize all codons. This movement of ribosome is called

1.  transposition

2.  transduction

3.  translocation

4.  transformation

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4
Correct Answer :

translocation


Explanation :
No Explanation available for this question

In protein synthesis, a polypeptide of five amino acid is synthesized. Which one of the following can be the correct polypeptide

1.  Glycine—valine—methionine—histidine—lysine

2.  Methionine—lysine—glycine—valine—histidine

3.  Lysine—methionine—valine—glycine—histidine

4.  Valine—methionine—glycine—histidine—lysine

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4
Correct Answer :

Methionine—lysine—glycine—valine—histidine


Explanation :
No Explanation available for this question

Aporepressor is inactive repressor in trptophan repressible operon system. It is

1.  always protein

2.  a substrate

3.  a metabolite

4.  may be protein

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4
Correct Answer :

always protein


Explanation :
No Explanation available for this question
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