Zoology - Molecular Basis of Inheritance Question with Solution | TestHub
ZoologyMolecular Basis of InheritanceRegulation of Gene ExpressionEasy2 minPYQ_2020
ZoologyEasysingle choice
InE.coli, the lac operon gets switched on when:
Options:
Answer:
A
Solution:
Lac operon consists of :
Promotor site - It is the site for the attachment of RNA polymerase enzyme.
One regulatory gene - i (i indicating inhibitor, not inducer). It synthesizes the active repressor protein all the time.
Operator (lac operator) - Active repressor protein synthesized by the regulatory gene is attached to the operator and the transcription by RNA polymerase enzyme.
Three structural genes (z gene, y gene and a gene).
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Molecular Basis of InheritanceSubtopic:Regulation of Gene Expression
⏱ 2mℹ️ Source: PYQ_2020
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