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TLS Online TPP Program

#Question id: 652

Two proteins, X and Y, bind to the same ligand, A, with the binding curves shown below. Which of the statement is correct for the graph analysing two proteins?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. For X, Kd is 1 micromole; for Y, Kd is 2 micromole & Because Y is half-saturated at a lower [B], it has a higher affinity for the ligand.

  2. For X, Kd is 3 micromole; for Y, Kd is 6 micromole & Because X is half-saturated at a lower [B], it has a higher affinity for the ligand.

  3. For X, Kd is 6 micromole; for Y, Kd is 2 micromole & Because Y is half-saturated at a lower [A], it has a higher affinity for the ligand.

  4. For X, Kd is 2 micromoles; for Y, Kd is 6 micromole & Because X is half-saturated at a lower [A], it has a higher affinity for the ligand.

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TLS Online TPP Program

#Question id: 5806

#Unit 8. Inheritance Biology

Which of these is NOT a mechanism by which a chromosome rearrangement could affect gene function?
TLS Online TPP Program

#Question id: 15722

#Unit 11. Evolution and Behavior

The variation that arises is directed toward fixed goals, so that a species evolves in a predetermined direction by some kind of internal drive, without the aid of natural selection. This hypothesis is known as,
TLS Online TPP Program

#Question id: 31029

#Unit 4. Cell Communication and Cell Signaling

All GPCR signal transduction pathways share the following common elements. which of the following is incorrect regarding GPCR? 
TLS Online TPP Program

#Question id: 32144

#Unit 1. Molecules and their Interaction Relevant to Biology

Extremely narrow but very deep of Major-groove proportions are found in
TLS Online TPP Program

#Question id: 24571

#Unit 10. Ecological Principles

In which case the population eventually decline to extinction?