TLS Online TPP Program

#Question id: 4002


Which statement is false about operons that have the feature of catabolic repression?

#Unit 3. Fundamental Processes
  1. Several different multisubunit repressors can block the transcription of such an operon.

  2. Operons with catabolic repression have characteristically weak promoters.

  3. Their transcription is lowered in the presence of glucose.

  4. Transcription of such an operon is increased as the concentration of cAMP increases.

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TLS Online TPP Program

#Question id: 4544

#Unit 3. Fundamental Processes

How is the binding of ligand to the extracellular domain communicated to the intracellular domain?

TLS Online TPP Program

#Question id: 4545

#Unit 3. Fundamental Processes

Through which signal transduction pathway- controls the activators such as Jun, one of the activators that works at the interferon-beta enhancer

TLS Online TPP Program

#Question id: 4546

#Unit 3. Fundamental Processes

In eukaryotes, transcriptional regulators are not typically controlled at the level of DNA binding (although there are exceptions). Regulators are instead usually controlled in one of the following two basic ways.

I. Unmasking an Activating Region

II. Transport into and out of the Nucleus

III. Mediated through proteolysis of an inhibitor or tethering region or by allosteric changes.

IV. Also is itself (or recruits) a deacetylase,

TLS Online TPP Program

#Question id: 4547

#Unit 3. Fundamental Processes

Transcription always done in 

TLS Online TPP Program

#Question id: 4548

#Unit 3. Fundamental Processes

 σ- subunit of prokaryotic RNA polymerase describing is incorrect

TLS Online TPP Program

#Question id: 4549

#Unit 3. Fundamental Processes

Which of the following is the correct combination?                             

I) A- Holoenzyme, B- Core

II) A- Core, B- Holoenzyme

i. The six subunits constitute the RNA polymerase an enzyme

ii. Sigma stimulates tight binding between RNA polymerase and promote

iii. absence of sigma factor polymerase loosely bind with their promoter

Which of the following combination correct fit by follow the given graph;