What is the reprrssure in lac …

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What is the reprrssure in lac operon

Posted by Anand Pandey 6 years, 2 months ago

CBSE > Class 12 > Biology

2 answers

Muskaan Vig 6 years, 2 months ago

Repressor is protein that binds to operator region in lac operon gene and prevents further genes (that are present further to operator and can only work when operator is not repressed ) to express itself.

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Yogita Ingle 6 years, 2 months ago

Gene regulation can be defined as any kind of alteration in the gene to give rise to a different expression which might result in a change in the synthesized amino acid sequence.

We can infer that the gene regulation can take place at various steps of gene expression which includes the following:

Replication level – Any error in copying the DNA may result in an altered expression.
Transcriptional level – During transcription, any error in the polymerization may again lead to a change in expression of the gene.
Post-transcriptional level – During the post-transcriptional modification i.e., RNA splicing, there may be some changes.
Translational level – During translation, if there is an error in the attachment of mRNA to the tRNA molecules, there may arise some changes.

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