Zoology - Evolution Question with Solution | TestHub
ZoologyEvolutionMiscellaneous/MixedEasy2 minPYQ_2020
ZoologyEasysingle choice
Identify theINCORRECTstatement from the following with reference to lac operon.
Options:
Answer:
D
Solution:
- lacZ encodes β-galactosidase (LacZ), an intracellular enzyme that cleaves the disaccharide lactose into glucose and galactose.
- lacY encodes Beta-galactoside permease (LacY), a transmembrane symporter that pumps β-galactosides including lactose into the cell using a proton gradient in the same direction. Permease increases the permeability of the cell to β-galactosides.
- lacA encodes β-galactoside transacetylase (LacA), an enzyme that transfers an acetyl group from acetyl-CoA to β-galactosides.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:EvolutionSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020
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