Describe the use of promoters in gene technology

  • Google+ icon
  • LinkedIn icon
  • 1265 views

Promoters switch genes on, if a gene is inserted into a bacterium it needs a promoter added to coordinate with the gene for the chanracteristic to be expressed.

For human insulin production in bacteria:

1) Gene intersted next to the B-galactosidase (lactase) gene so that they share a promoter.

2) Bacteria are grown in a medium containing lactose.

3) Lactase gene is switched on by promoter which switches on the insulin gene at the same time.

4) B-galactosidase and Human insulin are synthesised by the Bacteria, excreted and harvested for medical use and research. 

Roslyn I. GCSE English tutor, GCSE Biology tutor, A Level Extended Pr...

About the author

is an online A Level Biology tutor with MyTutor studying at Exeter University

How MyTutor Works

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok