Answer / t

without using instrument or any reagent,one can simply
shake the test tube,frothing will indicate the presence of
protein in the test tube

Answer / vipul panchal

just add chloroform or phenol to the test tube. one in which u
find turbidity contains protein. Rest one obviously wl have
DNA solution

Answer / muni kumar

Buiret test
Buiret solution is a blue liquid that changes to purple
when proteins are present and to pink in the presence of
short chains of polypeptides. The copper atom of the biuret
solution reacts with the peptide bonds to cause the color
change.

Answer / narayana

By shaking of 2 test tubes.
distrubing the solution that is protien,no change thats DNA.

Answer / kesava

by shaking the test tube, on shaking test tube proteins gives floath and dna solution will not give floath.

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