National 5 Biology Genetic Engineering Recap Draw a

National 5 Biology Genetic Engineering

Recap �Draw a simple bacterial cell �How is DNA packaged in a bacterial cell?

Genetic Engineering �Genetic information can be transferred from one cell to another cell naturally. Virus injecting DNA into a cell Bacterial cells exchanging genetic information

Genetic Engineering �Bacterial cells are much smaller than animal cells. �They have no nucleus �Their genetic information is in the form of one circular chromosome. �They also have smaller plasmids which carry genes.

Bacterium

Genetic Engineering �The development of Genetic engineering makes it possible to put genes from one organism into a different organism. �A good example is putting human genes into bacteria. The bacteria then have the instructions to make whatever the gene is supposed to code for.

Genetic Engineering �Genetic engineering has been carried out with the gene for insulin production. �Insulin is a protein which we produce to control our blood sugar concentration. �Some people can’t make insulin so can’t control their blood sugar concentration and therefore suffer from diabetes.

Genetic Engineering �The insulin needed for diabetics can now be made by bacterial cells. �This is done by inserting the human insulin gene into bacteria and they can then produce large quantities of insulin for us very quickly.

Genetic Engineering

Activity �Collect a copy of the genetic engineering cut out sheet. �Try your own genetic engineering using plasticene