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TLS Online TPP Program

#Question id: 2617

According role of regulatory proteins, RNA polymerase and one or more promoter elements, mostly three levels of transcription are there, choose correct one

#Unit 2. Cellular Organization

  1. RNA polymerase occasionally binds the promoter spontaneously – No transcription

  2. Binding of the repressor to the operator- Basal level

  3. If both the repressor and activator are present and functional, the action of the repressor typically overcomes that of the activator - Activated level

  4. A & B both are correct

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TLS Online TPP Program

#Question id: 28982

#Unit 7. System Physiology – Animal

Tyrosine is transported into catecholamine-secreting neurons via
TLS Online TPP Program

#Question id: 5455

#Unit 8. Inheritance Biology

Inheritance of skin colour in humans is an example on
TLS Online TPP Program

#Question id: 875

#Unit 1. Molecules and their Interaction Relevant to Biology

Why positive phi angles less common than negative Phi angles in proteins contain L amino acid?
TLS Online TPP Program

#Question id: 11024

#Unit 7. System Physiology – Animal

A 55-year-old man has been diagnosed with Stokes-Adams syndrome. Two minutes after the syndrome starts to cause active blockade of the cardiac impulse, which of the following is the pacemaker of the heart?
TLS Online TPP Program

#Question id: 13104

#Unit 13. Methods in Biology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Why is it that some people show two bands?