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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: 4482

#Unit 3. Fundamental Processes

The General Transcription Factors of RNA Polymerase, with their subunits, select correct matching

A.     TBP

      1

B.     TFIA

      11

C.     TAFs

       2

D.     TFIIH

      10

TLS Online TPP Program

#Question id: 1318

#Unit 4. Cell Communication and Cell Signaling

Pore- like connections between adjacent cells is an example of
TLS Online TPP Program

#Question id: 23857

#Unit 13. Methods in Biology

Which was developed by a British researcher and causes DNA sequences to be transferred to a membrane and identified with a probe?
TLS Online TPP Program

#Question id: 24530

#Unit 11. Evolution and Behavior

The average numbers of offspring produced by three genotypes are: AA=6, Aa=3, aa=2. What is the fitness value of Aa?
TLS Online TPP Program

#Question id: 10684

#Unit 10. Ecological Principles

Which one of the following statements is INCORRECT?