Zoology - Molecular Basis of Inheritance Question with Solution | TestHub
ZoologyMolecular Basis of InheritanceRegulation of Gene ExpressionEasy2 minPYQ_2020
ZoologyEasysingle choice
I. Glucose or galactose may bind with the repressor and inactivate it.
II. In the absence of lactose, the repressor binds with the operator region.
III. The z-gene codes for permease.
IV. This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are:
Options:
Answer:
C
Solution:
In Lac operon, the active repressor can be inactivated by inducers, like lactose and allolactose only. Glucose or galactose cannot inactivate the repressor.lacZgene codes for enzyme beta-galactosidase which causes the breakdown of lactose into glucose and galactose.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Molecular Basis of InheritanceSubtopic:Regulation of Gene Expression
⏱ 2mℹ️ Source: PYQ_2020
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