Inheritance survival
Download
1 / 12

Inheritance & Survival - PowerPoint PPT Presentation


  • 56 Views
  • Uploaded on
  • Presentation posted in: General

Inheritance & Survival. Genetic Engineering. Genetic Engineering. Why can we not use pig organs in humans? There is a shortage of hearts and kidneys for transplant – why not use a pig? Biology text book p188. Manufacturing Insulin. Insulin is needed to keep diabetics alive.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Inheritance & Survival

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Inheritance & Survival

Genetic Engineering


Genetic Engineering

  • Why can we not use pig organs in humans?

  • There is a shortage of hearts and kidneys for transplant – why not use a pig?

  • Biology text book p188


Manufacturing Insulin

  • Insulin is needed to keep diabetics alive.

  • Human insulin works best with humans

  • It is possible to obtain small amounts of human insulin from dead bodies.


Manufacturing Insulin

  • There are insufficient supplies of human insulin to meet demand.

  • Genetic engineers have devised ways of taking the human insulin gene – putting that gene into bacteria that then make insulin.


Making insulin

  • The gene for insulin is “cut” from the DNA of a human.

  • This is done by using enzymes.


Making insulin

  • Plasmids (small circles of DNA) are obtained from bacteria.

  • These plasmids are then cut open with enzymes.


Making insulin

  • The human insulin gene is “spliced” into the bacterial plasmid.

  • The plasmid is re-introduced to the bacteria.


Making insulin

  • The bacteria are grown in large tanks until there are millions of them.

  • All the plasmids will be busy making “human” insulin


Making insulin

  • This insulin can then be used by diabetics!


Genetically Modified Crops

GM crops


GM Crops

  • Read carefully through the sheet entitled “Genetic Modification”


GM Crops

  • Make a list of the advantages of GM crops.

  • Make a list of the reasons people maybe be against the use of GM crops.


ad
  • Login