TLS Online TPP Program

#Question id: 575


Which of the following statements is FALSE?

#Unit 1. Structure and Function of Biomolecules
  1. The word enzyme is from a Greek word meaning ʺin yeast.ʺ

  2. Enzymes are always made of protein.

  3. The first enzyme was crystallized in 1926.

  4. Enzymes can couple two different reactions.

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TLS Online TPP Program

#Question id: 4553

#Unit 3. Fundamental Processes

The NtrC protein (nitrogen regulatory protein C)—stimulates transcription of the glnA gene, this protein is an activator of σ54-RNA polymerase. Which of the following given characteristics about this protein is incorrect?

TLS Online TPP Program

#Question id: 4554

#Unit 3. Fundamental Processes

In which studies have shown that phosphorylated NtrC bound at enhancers and σ54-polymerase bound at the promoter interact directly, forming a loop in the DNA between the binding sites?

TLS Online TPP Program

#Question id: 4555

#Unit 3. Fundamental Processes

The σ54-RNA polymerase binds to the glnA promoter but does not melt the DNA strands and initiate transcription until it is activated by

TLS Online TPP Program

#Question id: 4557

#Unit 3. Fundamental Processes

In eukaryotic transcription RNA polymerase II is transcribed

TLS Online TPP Program

#Question id: 4558

#Unit 3. Fundamental Processes

Classes of RNA transcribed by the three eukaryotic nuclear RNA Polymerase;

                    Polymerase

             RNA Transcribed     

A. RNA polymerase I                   

i) tRNAs, 5S rRNA, snRNA, U6, 7S RNA

B. RNA polymerase II

ii) Pre-rRNA 28S, 18SrRNA,  5.8SrRNAs

C. RNA polymerase III

iii) mRNA, snRNAs, siRNAs, miRNAs

 Match the following correct combination given above combinations;

TLS Online TPP Program

#Question id: 4559

#Unit 3. Fundamental Processes

The 5’Cap is added to the eukaryotic nascent RNAs shortly after