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Home Q & A Board Biology-Related Homework Help General Biology
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TinkerBell2175 TinkerBell2175
wrote...
Posts: 7
Rep: 1 0
9 years ago
These two questions are stumping me!  Please help and please explain if you have the time....

T cells selected on a b haplotype thymus would be able to respond to antigen presenting on which of the following haplotype antigen presenting cells?
  a. b
  b. both b and a x b
  c. a x b
  d. a
  e. all cells from a, b and a x b
 
I don't understand the process of figuring out this answer, I know it is an experiment though...Maybe a trick question?

Question 35 .The following cytokines IL-2 and IFN gamma act __________ on cells.
  a. reduntantly
  b. synergistically
  c. antagonistically

I don't understand how synergistically and antagonistically acting on cells....

Thank you in advance!
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wrote...
#1
9 years ago
For the first one, I don't get what the question mean. T cells will attack any cell if it recongnizes it as antigen.  If the cell presenting haplotype antigen that T cells have already recognized. T cell will attack it.
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