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Question
AIDS can be detected by PCR at an early stage as
Options:
A .  it carries out isolation fast
B .  No other technique is available
C .  PCR has to be done before hybridization can be done
D .  It amplifies the genetic material
Answer: Option D
:
D
AIDS can be detected by PCR (polymerase chain reaction) at early stages as it amplifies the genetic material millions of times. Thus the presence of even a tiny number of viruses can give a positive result to the diagnostic test.

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