GA Ag Ed Curriculum Committee May 2007

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Presentation transcript:

GA Ag Ed Curriculum Committee May 2007 Genetic Engineering GA Ag Ed Curriculum Committee May 2007

Introduction - Objectives 1. Explain the concern over genetic engineering. 2. Discuss examples of how genetic engineering has benefited the producer and consumer.

Topics of Discussion What is genetic engineering? What are genes or genetics of animals? What is the potential of genetic engineering? How is genetic engineering currently being used in the animal industry? What is BST? What is cloning? What are concerns over genetic engineering?

What is genetic engineering? It is the alteration of the genetic makeup of an organism to produce a desired effect.

What are genes or genetics of animals? Genes - units of inheritance, composed of DNA. Genetics - the science that deals with the genetic makeup of an organism.

What is the potential of genetic engineering? Better disease resistance of animals Better feed efficiency More milk production More nutritious meat lower cholesterol levels

How is genetic engineering currently being used in the animal industry? Producing insulin Insulin gene put into bacteria Huge amounts of this genetically engineered bacteria is produced When bacteria is grown, they produce insulin Bacteria is killed and the insulin is extracted

What is BST? Naturally occurring hormone found in cows. Cows who given additional amounts of BST significantly increase their milk production.

What is cloning? Cloning is the duplication of an animal from the genetic material found in a cell of an animal. Even though clones have the same genetics, they do not always have the same phenotypic expression.

Dolly – the First Cloned Sheep

What are concerns over genetic engineering? Fear that monsters might be produced Concern that species might be produced that could be harmful. Examples of plants and animals at one time thought to be beneficial: - kudzu - Johnson grass - carp - starlings

What This Means Genetic engineering is just beginning to make strides in creating new technologies that will continue to amaze our population. As students, you will face many moral and scientific decisions in the future as adults.