Biology, asked by ishusharma8078, 11 months ago

Can a disease be detected before its symptoms appear? Mention the principle involved.

Answers

Answered by aryan2983
0

Answer:

Yes. Very small concentrations of bacteria or virus can be detected by amplification of nucleic acid through PCR r- DNA technology and through ELISA.

Answered by Shifan79
0

Answer:

yes

Explanation:

like typhoid can be detected by widal test

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