61.  In Which of the following DNA not directly involved ?

A. Repication

B. Transcription

C. Translation

D. Transformation

Answer : Option C

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62.  Transcription begins when one of the following enzymes binds to promotor site.

A. DNA polymerase

B. RNA polymerase

C. helicase

D. Gyrase

Answer : Option B

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63.  

What dose A & B represent ?

A. Grycase , Helicase

B. Double Stranded Protein, Helicase

C. Helicase, Single strand binding protein

D. Topoisomerase Helicase

Answer : Option C

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64.  

State the process and mention the labelled protion.

A. Process of Translation - X-RNA Polymerase - Y-DNA Template - Z-m RNA Transcript

B. process of Transcription - X-RNA Polymerase - Y-DNA Template - Z- RNA Transcript

C. process of Translocation - X-DNA polymerase - Y- Template - Z- Transcript

D. Process of Transformation - X - DNA polymerase - Y - RNA template - Z - RNA transcript

Answer : Option B

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65.  

What do P, Q, R and S regions of t RNA ?

A. P - Anticodon loop Q - Variable loop R - T ? c loop S - D Loop

B. P. D Loop Q - T ? c loop R - Variable loop S - Anticodon loop

C. P - T ? c loop Q - D loop R - Anticodon loop S - Variable loop

D. P - Anticodon Loop Q - T ? c loop R - D loop S - Variable loop

Answer : Option A

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66.  

Which state is represent by the above model

A. Repressed state of lac operon

B. Inactive state of Lac operon

C. Active state of Lac operon

D. Induced state of Lac operon

Answer : Option A

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67.  When does the structural genes of Lac operon switch on ?

A. i | P | o | z | y | a

B. i | P | o | z | Y | a

C. i | P | O | z | Y | a

D. None

Answer : Option C

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68.  

What does X replesent in the above diagram

A. Released polypeptide chain

B. Released 3D protein molecule

C. Released secondary protein

D. Released tertiary protein

Answer : Option A

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69.  

What does ‘X’ represent

A. gene

B. segment of DNA

C. seqment of DNA coding for specific protein

D. Both A & C

Answer : Option D

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70.  

Write the codon for the anticodon on the t - RNA

A. AGU

B. UGU

C. UGA

D. ACU

Answer : Option A

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