In metal chelate affinity chromatography, divalent cations such as Zn – McqOptions

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1.	In metal chelate affinity chromatography, divalent cations such as Zn+2 or Ni+2 is attached on the electrophoretic matrix and it binds to ___________
A.	Trp tag
B.	Ala tag
C.	Gly tag
D.	His tag
Answer» E.

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