TLS Online TPP Program

#Question id: 9259


The oceans affect the biosphere in all of the following ways except

#Unit 9. Diversity of Life Forms
  1. producing a substantial amount of the biosphere's oxygen.
  2.  removing carbon dioxide from the atmosphere.
  3. moderating the climate of terrestrial biomes.
  4. regulating the pH of freshwater biomes and terrestrial groundwater
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TLS Online TPP Program

#Question id: 4462

#Unit 3. Fundamental Processes

Promoter escape is associated with the breaking of all interactions (at the given promoter) between;

TLS Online TPP Program

#Question id: 4463

#Unit 3. Fundamental Processes

___?____ is a way to store and mobilize energy during transcription initiation, and its release upon escape is what enables polymerase to break free of the promoter and dislodge s factor from the core.

TLS Online TPP Program

#Question id: 4464

#Unit 3. Fundamental Processes

Role of Gre factor;

TLS Online TPP Program

#Question id: 4465

#Unit 3. Fundamental Processes

Main function of Nus proteins in transcription,

TLS Online TPP Program

#Question id: 4466

#Unit 3. Fundamental Processes

As well as synthesizing the transcript, RNA polymerase performs two proofreading functions on that growing transcript;

i. Pyrophosphorolytic editing

ii. Hydrolytic editing

Choose correct processes accordingly,

A. The polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence.

B. In this, the enzyme uses its active site, in a simple back-reaction,

C. Catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi

D. The enzyme can then incorporate another ribonucleotide in its place in the growing RNA chain.

TLS Online TPP Program

#Question id: 4467

#Unit 3. Fundamental Processes

Both polymerase removal and repair enzyme recruitment are performed by a single protein called?