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TLS Online TPP Program

#Question id: 15525

In the instructive model, TCR/CD4 and TCR/CD8 coengagement generates unique signals, if a thymocyte randomly generated a TCR with an affinity for MHC Class I. which thymocyte would bind with MHC class I?

#Unit 4. Cell Communication and Cell Signaling
  1. Only CD8 would bind MHC class I
  2. TCR and CD4 would bind MHC Class I together
  3. TCR and CD8 would bind MHC Class I together
  4. TCR and CD4 would bind MHC Class II together
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TLS Online TPP Program

#Question id: 10934

#Unit 1. Molecules and their Interaction Relevant to Biology

Carboxy terminus is protonated at ………………while amino terminus will be deprotonated at………..
TLS Online TPP Program

#Question id: 2406

#Unit 2. Cellular Organization

During which of the following processes do sister chromatids separate from each other?
TLS Online TPP Program

#Question id: 11549

#Unit 7. System Physiology – Animal

If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?

I) The molecule is lipid soluble.

II) The molecule is derived from a series of steps beginning with cholesterol.

III) The molecule acts at a target tissue some distance from where it is produced.

IV) The molecule uses a transport protein when in an aqueous solution such as blood.
TLS Online TPP Program

#Question id: 10269

#Unit 8. Inheritance Biology

If the probability of being blood-type A is 1/8 and the probability of being blood-type O is 1/2, what is the probability of being either blood-type A or blood-type O?
TLS Online TPP Program

#Question id: 4832

#Unit 8. Inheritance Biology

Percentage of crossing over is more when