What is the correct sequence of structural genes in the $lac$ operon?

  • A
    $y, a, z$
  • B
    $a, z, y$
  • C
    $z, y, a$
  • D
    $z, a, y$

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Similar Questions

$A$: $Lac$ operon exerts negative control only.
$R$: The operator is occupied by aporepressor during regulation.

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.

The activity of the structural gene is controlled by:

When do bacteria $NOT$ produce $\beta$-galactosidase?

In $lac$ operon,$z$ gene codes for:

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