Suggest any two techniques which can help in early detection of becterial`//`viral infections much before the symptoms appear in the body.

Suggest any two techniques which can help in early detection of becter

1.	Suggest any two techniques which can help in early detection of becterial`//`viral infections much before the symptoms appear in the body.
Answer» The symptoms of the disease can be detected by amplifications of Nucleic acid by PCR and using Autoradiography.

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
Rerrange the following in an increasing order of their basic strengths: `C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)` NH and `CH_(3)NH_(2)`.
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Suggest any two techniques which can help in early detection of becterial`//`viral infections much before the symptoms appear in the body.

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