What is the name of the stretch of DNA where RNA polymerase binds?

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#Question id: 14782

#Unit 13. Methods in Biology

x is a random variable with mean    

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#Question id: 14783

#Unit 13. Methods in Biology

If A and B are two events such that P(A) = 0 and P(B) # 1, then is equal to

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#Question id: 14784

#Unit 13. Methods in Biology

Ten points are marked on a straight line and 11 points are marked on another straight line. If any three points are chosen, what is the probability that it forms a triangle?

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#Question id: 14785

#Unit 13. Methods in Biology

Three machines A, B and C produce identical items of their respective output 5%, 4% and 3% items are faulty. If A produces 25% of the total output, B produces 30% and C the remainder and an item selected at random is found to be faulty, what is the probability that it was produced by machine C?

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#Question id: 14805

#Unit 4. Cell Communication and Cell Signaling

Secondary immune response to a hapten depends on the: 

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#Question id: 14806

#Unit 4. Cell Communication and Cell Signaling

Which is more immunogenic compound ?