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TLS Online TPP Program

#Question id: 14810

Which line is not true for epitopes

#Unit 4. Cell Communication and Cell Signaling
  1. lymphocytes recognize discrete sites on the macromolecule called epitopes
  2. Epitopes are the immunologically active regions of an immunogen
  3. bind to antigen-specific membrane receptors on lymphocytes or to secreted antibodies.
  4. An epitope on a protein antigen may not  involve elements of the primary, secondary structure of the protein. 
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TLS Online TPP Program

#Question id: 15220

#Unit 13. Methods in Biology

Which of the following highly sensitive analytical technique particularly useful for studying microheterogeneity in a protein
TLS Online TPP Program

#Question id: 26443

#Unit 3. Fundamental Processes

XP-V is caused by a defect in the translesion DNA polymerase
TLS Online TPP Program

#Question id: 12049

#Unit 7. System Physiology – Animal

Which of the following hormones is released by the presence of fat and protein in the small intestine and has a major effect to decrease gastric emptying?
TLS Online TPP Program

#Question id: 11292

#Unit 10. Ecological Principles

In an pond ecosystem the _____ is always greater than the _____ .

(a) number of primary producers . . . number of secondary consumers

(b) biomass of secondary consumers . . . biomass of primary consumer

(c) assimilation efficiency of primary consumers . . . assimilation efficiency of secondary consumers

(d) biomass of primary producers . . . biomass of primary consumers
TLS Online TPP Program

#Question id: 2536

#Unit 2. Cellular Organization

If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8, then the concentration of H+ ions ________.