A) Lactose Permease
B) Transacetylase
C) Lactose permease and transcetylase
D) \[\beta \]-galactosidase
Correct Answer: D
Solution :
[d] A non-sense mutation is the one which stops polypeptide synthesis due to formation of a terminating or non-sense codon. e.g. ATT(UAA), ATC (UAG), ACT(UGA). The lactose or lac operon of Esherichia coli contains structural genes (z, y, a). If Y codes for termination of polypeptide chain then only the product of 'z' gene transcribe to form \[\beta \] galactosidase.You need to login to perform this action.
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