Immunological Techniques
DNA- footprinting is a suitable technique for identifying which of the following?

Protein binding site within DNA
Particular mRNA in mixture
Introns within DNA
Particular t-RNA in mixture

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Immunological Techniques
What would happen if serum is omitted from the ELISA, but all other steps remain same?

Anti-human Ig-conjugate would bind non-specifically to the ELISA plate
Anti-human Ig-conjugate would not bind and be washed away
Both (a) and (b)
The OD values would be nearly the same as the assay control

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