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Gene expression

 

The activation of a gene that results in transcription and the production of mRNA is called gene expression.

 

 

During gene expression a part of the genome is used at a time only when the cell needs it.  this process is divided into two steps: Transcription in which RNA polymerase transcribes a portion of DNA into mRNA, and translation in which this mRNA migrates to a ribosome where it is translated into a specific protein.

Introductory questions

 

  1. What is the function of RNA polymerase?

  2. How do promoters work both in prokaryotes and eukaryotes?

  3. How are operators in prokaryotes similar to intron-exon pattern in eukaryotes?

Must see..

Gene expression in prokaryotes

Gene expression in eukaryotes

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