Which enzyme will be produced in a cell if th | vedclass

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(c) : A nonsense mutation is the one which stops polypeptide synthesis due to the formation of termination or non&shy;sense codon. In lac operon, sequ

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$\beta$-&shy;galactosidase

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(c) : A nonsense mutation is the one which stops polypeptide synthesis due to the formation of termination or non&shy;sense codon. In lac operon, sequence of structural genes is $Z, Y$, and $A$, which respectively code for $\beta$-&shy;galactosidase, lactose permease and transacetylase. If the gene $Y$ has nonsense mutation, gene expression will stop at it, resulting in non&shy;expression of both gene $Y$ and successive gene $A$. Thus, only $\beta$-&shy;galactosidase enzyme will be produced.

List $-I$	List $-II$
$a$ In lac operon $i$ gene codes for	$i$ transacetylase
$b$ In lac operon $z$ gene codes for	$ii$ permease
$c$ In lac operon $y$ gene codes for	$iii$ $\beta$ - galactosidase
$d$ In lac operon $a$ gene codes for	$iv$ Repressor

Which enzyme will be produced in a cell if there is a nonsense mutation in the lac $Y$ gene?

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