Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 1983
TLS Online TPP Program

#Question id: 2008

An immune response to a tissue graft will differ from an immune response to a bacterium because

#Unit 4. Cell Communication and Cell Signaling

  1. MHC molecules of the donor may stimulate rejection of the graft tissue.

  2. the tissue graft, unlike the bacterium, is isolated from the circulation and will not enter into an immune response.

  3. a response to the graft will involve T cells and a response to the bacterium will not.

  4. a bacterium cannot escape the immune system by replicating inside normal body cells.

More Questions
TLS Online TPP Program

#Question id: 12939

#Unit 13. Methods in Biology

Choose the incorrect statement for the production of site-directed mutations.
TLS Online TPP Program

#Question id: 22964

#Unit 7. System Physiology – Animal

The receptor for PTH is coupled, via a 
TLS Online TPP Program

#Question id: 19188

#Unit 13. Methods in Biology

If amplification of one of the strand is favoured, the modification of PCR is known as __________
TLS Online TPP Program

#Question id: 12290

#Unit 10. Ecological Principles

A mating system in which one organism of one sex mates with only one member of the opposite sex is called ___________.
TLS Online TPP Program

#Question id: 3374

#Unit 11. Evolution and Behavior

Consider an autosomal locus with two alleles A1 and A2 at frequencies of 0.6 and 0.4 respectively. Each generation, A1 mutates to A2 at a rate of μ = 1 x 10-2 while A2 mutates to A1 at a rate of υ = 1 x 10-1) Assume that the population is infinitely large and no other evolutionary force is acting. The overall change in allelic frequency will be