The actual number of proteins encoded by these genes may be many more due to post transcriptional modifications. Explain.

Dear student
Please find below the solution to the asked query

The given statement explains that a single gene can produce many proteins. The mRNA produced from a single gene consists of ‚Äčintrons and exons. The parts of mRNA that does not code for any potien are called introns while parts that form protein are called exons. After post transcriptional modifications the introns are cut away while the exons are stitched together to form mature mRNA. The type of protein produced depends on the way, the cell joins the exons together. If these exons are joined together in one way, it may produce one protein and if they are joined some different way, it produces a different protein. Hence, the actual number of proteins encoded by these genes may be many more due to post transcriptional modifications. This can be illustrated as:
 

 
Hope this information will clear your doubts about the topic.
Regards

  • 0
What are you looking for?