(C) In the $lac$ operon system of $E. coli$,the structural gene $lacY$ codes for the enzyme permease.Permease is a membrane-bound protein that increas

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(C) In the $lac$ operon system of $E. coli$,the structural gene $lacY$ codes for the enzyme permease.Permease is a membrane-bound protein that increases the permeability of the cell membrane to $\beta$-galactosides like lactose.Therefore,it is essential for the transport and entry of lactose molecules from the external environment into the $E. coli$ cell.

Class 12 Biology Molecular Basis of Inheritance Gene regulation

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Which one of the following enzymes is required for the entry of lactose into the $E. coli$ cell?

MHT CET 2024 All MHT CET

A
Lactase
B
Galactosidase
C
Permease
D
Transacetylase

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Class 12 Questions

Class 12

Biology Questions

Chapter

Molecular Basis of Inheritance

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Gene regulation

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In eukaryotic organisms,gene expression regulation cannot occur at which of the following levels?

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Which of the following binds to the repressor,causing the repressor and the operator to dissociate from each other?

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Which one of the following enzymes is required for the entry of lactose into the $E. coli$ cell?

Similar Questions

Which enzyme is the expression product of the $y$ gene in the $lac$-operon?

What does '$4$' represent in the given figure?

In eukaryotic organisms,gene expression regulation cannot occur at which of the following levels?

Which of the following binds to the repressor,causing the repressor and the operator to dissociate from each other?

In the $Lac$ operon,to which component does the inducer bind to switch the system 'on'?

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