how long lac operon is expressed in presence of lactose?
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Answered by
106
The Lactose operon expresses as long as the Lactose is present. When all lactose is converted into glucose and galactose, the reaction stops....hope it helps.
Kuldeepnehra:
Operon is required only for the transport and metabolism of lactose
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Cluster of genes transcribed into a single mRNA molecule ..it's molecular genetics... Concepts must be cleared.Wish you all the best
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Answered by
38
ANSWER:
The lac operon depends on lactose to be expressed and hence lac operon works only in the presence of lactose.
EXPLANATION:
The lack operon is expressed based on availability of lactose. This reaction involves the glucose and galactose formation. Once the entire lactose is coverted in to glucose and galactose the reaction stops. These operon have specific lac gene with activator and repressor sites. The gene has promotor which stimulates the metabolism activity.
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