Which of following is required as inducer(s) for expression of Lac operon?

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5.Molecular Basis of Inheritance

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Which of the following is required as inducer(s) for the expression of Lac operon?

Lactose

Lactose and Galactose

Glucose

Galactose

(NEET-2016)

Solution

(a) : In Lac operon, lactose is an inducer. It binds with suppressor and inactivates it. It allows $RNA$ polymers access to the promoter and transcription proceeds.

Standard 12

Biology

Definitions/Explanation : A promoter & The structural gene

easy

The genes are responsible for growth and differentiation in an organism through regulation of

medium

$A$ : Single $DNA$ dependent $RNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria.
$R$ : Structural genes in bacteria are monocistronic.

medium

In Operon concept, the regulator gene regulates chemical reactions in the cell by

medium

(AIIMS-1985)

Define an operon, giving an example, explain an Inducible operon.

medium

Which of the following is required as inducer(s) for the expression of Lac operon?

Solution

Similar Questions

Definitions/Explanation : A promoter & The structural gene

The genes are responsible for growth and differentiation in an organism through regulation of

$A$ : Single $DNA$ dependent $RNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria. $R$ : Structural genes in bacteria are monocistronic.

In Operon concept, the regulator gene regulates chemical reactions in the cell by

Define an operon, giving an example, explain an Inducible operon.

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$A$ : Single $DNA$ dependent $RNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria.
$R$ : Structural genes in bacteria are monocistronic.