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TLS Online TPP Program

#Question id: 3869

Which one of the following statements about E. coli RNA polymerase (core enzyme) is false?

#Unit 3. Fundamental Processes

  1. It can start new chains de novo or elongate old ones.

  2. It has no catalytic activity unless the sigma factor is bound.

  3. It uses nucleoside 5'-triphosphates as substrates.

  4. Its activity is blocked by rifampicin.

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TLS Online TPP Program

#Question id: 10372

#Unit 6. System Physiology – Plant

Nod genes, which NodD activates, code for nodulation proteins, most of which are involved in the biosynthesis of Nod factors such as;

 a) Nod factors are lipochitin oligosaccharide signal molecules

 b) Nod factor shave a chitin β-1→ 4-linked N-acetyl-D-glucosamine backbone

 c) These N-acetyl-D-glucosamine backbone varying in length from three to six sugar units

 d) A fatty acid chain on the C-2 position of the nonreducing sugar determine the length and degree of saturation of the fatty acyl chain by NodL

 Which of the following is incorrect?
TLS Online TPP Program

#Question id: 12225

#Unit 10. Ecological Principles

Which of the following interactions can correctly be labeled coevolution?
TLS Online TPP Program

#Question id: 318

#Unit 1. Molecules and their Interaction Relevant to Biology

Attractions of oppositely charged functional groups of proteins are sometimes called ________.
TLS Online TPP Program

#Question id: 12651

#Unit 6. System Physiology – Plant

Which one of the following compound of octadecanoid pathway produces in chloroplast and transported into the peroxisome for further processing?
TLS Online TPP Program

#Question id: 23434

#General Aptitude

Pointing to a photograph. Bajpai said, “He is the son of the only daughter of the father of my brother.” How Bajpai is related to the man in the photograph?