Molecular Basis Of Inheritance Ques 34
In E.coli during lactose metabolism repressor binds to operator
[2002]
(a) regulatory gene
(b) operator gene
(c) structural gene
(d) promoter region
Show Answer
Answer : b
Hints & Solution
(b) Regulator gene forms a biochemical substance for suppressing the activity of operator gene. Promoter gene is the gene which provides point of attachment to RNA polymerase required for transcription of structural genes. Structural genes are genes which transcribe mRNA for polypeptide synthesis.
BETA
