Lactose operon produces enzymes - Vidyadip

MCQ

Lactose operon produces enzymes

A
$b-$galactosidase, permease and glycogen synthetase.
✓
$b-$galactosidase, permease and transacetylase.
C
permease, glycogen synthetase and transacetylase.
D
$b-$galactosidase, permease and phosphoglucose isomerase.

✓

Answer

Correct option: B.

$b-$galactosidase, permease and transacetylase.

b
Lactose operon (model proposed by Jacob and Monad) produces three enzymes -$ b-$ galactosidase $(z)$, permease $(y)$, transacetylase $(a) . $b-\; Galactosidase $(z)$ is responsible for the splitting of lactose into glucose and galactose. Permease $(y)$ is required in entry of the lactose/galactose. Transacetylase $(a)$ transfers an acetyl $CoA$ to $ b-$Galactosides.

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