Question

In presence of chromogenic substrate recombinant bacteria gives:-
a) red colour
b) blue colour
c) colourless
d) green colony
E) Non of the above.



Also define it's reason.

Answer 1

Blue coloured colony due to the activation of the enzyme alpha galactosidase which hydrolyses alpha glyctosyl moiety from glycolipid and glycoproteins. 

Answer 2

i think c) colourless........