Sarthaks Test
+1 vote
in Biology by (63.1k points)

Lac operon is a cluster of genes present in 

(A) Human beings 

(B) E. coli 

(C) Lambda phage 

(D) All of these

1 Answer

+2 votes
by (64.6k points)
selected by
Best answer

Correct option (B) E. coli

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