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Suggest any two techniques which can hel...

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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The symptoms of the disease can be detected by amplifications of Nucleic acid by PCR and using Autoradiography.
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Name two methods which serve the purpose of early diagnosis is of bacterial or viral infection.

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Which of the following technique is used to detect a disease before its symptoms appear?

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