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TLS Online TPP Program

#Question id: 2632

How would transcription of the E. coli trp operon be affected,

I. If Removing sequence 4;

II. Changing several nucleotides in sequence 3 so that it can base-pair with sequence 4 but not with sequence 2;

#Unit 2. Cellular Organization

  1. I-No attenuation of transcription.

  2. I & II- The only regulation would be that afforded by the Trp repressor.

  3. II-Constant attenuation of transcription. Attenuator always forms, regardless of the availability of tryptophan.

  4. Only A & C

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TLS Online TPP Program

#Question id: 10937

#Unit 1. Molecules and their Interaction Relevant to Biology

The pH at which net charge of a molecule become zero the point known as
TLS Online TPP Program

#Question id: 28473

#Unit 5. Developmental Biology

which transcriptional factor is involved to maintained the pluripotency of ICM ?
TLS Online TPP Program

#Question id: 4514

#Unit 3. Fundamental Processes

What is true about coactivators,

A. The coactivators act directly by binding to the DNA

B. The coactivators act indirectly—not by binding to the DNA

C. Are required for essential communication between the activators and the complex composed of Pol II.

D. Are required for essential communication between the and the basal (or general) transcription factors.
TLS Online TPP Program

#Question id: 23256

#Unit 13. Methods in Biology

Which chromosome pair has same centromeric sequence?
TLS Online TPP Program

#Question id: 11829

#Unit 6. System Physiology – Plant

The certain cyclic olefin compounds, have been shown to block ethylene breakdown without inhibiting ethylene action?