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If a person obtains transformants by ins...

If a person obtains transformants by inserting a recombinant DNA within the coding sequence of enzyme `beta-galatosidase, he will separate out recombinants from non-recombinats by which of the following observations ?

A

1) Non-recombinant colonies do not produce any colour whereas reccombinants give blue coloured colonies

B

2) Recombinant colonies do not produce any colour whereas non-recombinants given blue coloured colonies.

C

3)Recombinants and non-recombinants both produce blue coloured colonies

D

4) No colonies are formed due to insertional inactivation

Text Solution

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The correct Answer is:
B
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