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(D) In the $lac$ operon,there are three structural genes: $lacZ$,$lacY$,and $lacA$.$1$. The $lacZ$ gene codes for $\beta$-galactosidase,which is respo

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Codes for permease

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(D) In the $lac$ operon,there are three structural genes: $lacZ$,$lacY$,and $lacA$.$1$. The $lacZ$ gene codes for $\beta$-galactosidase,which is responsible for the hydrolysis of lactose into glucose and galactose.$2$. The $lacY$ gene codes for permease,which increases the permeability of the cell to $\beta$-galactosides like lactose.$3$. The $lacA$ gene codes for transacetylase.Therefore,the $Y$ gene is responsible for coding for permease.

$(a)\; i$ gene	$(i)\; \beta-\text{galactosidase}$
$(b)\; z$ gene	$(ii)\; \text{Permease}$
$(c)\; a$ gene	$(iii)\; \text{Repressor}$
$(d)\; y$ gene	$(iv)\; \text{Transacetylase}$

$Y$ gene in $lac$ operon is responsible for .....

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In the $lac$ operon,which enzyme$(s)$ will be produced in the cell if there is a nonsense mutation in the $lac$ $y$ gene?

Which of the following pairs does not exhibit complementarity?

What does '$3$' represent in the given figure?

Match the following genes of the $Lac$ operon with their respective products.
$(a)\; i$ gene $(i)\; \beta-\text{galactosidase}$
$(b)\; z$ gene $(ii)\; \text{Permease}$
$(c)\; a$ gene $(iii)\; \text{Repressor}$
$(d)\; y$ gene $(iv)\; \text{Transacetylase}$

Select the correct option.

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