Biotechnology The manipulation of biological organisms to make

Biotechnology The manipulation of biological organisms to make products that benefit human beings. • used in agriculture , food science , medicine , and Genetic engineering.

Genetic Engineering • Genetic engineering is a laboratory technique used by scientists to change the DNA of living organisms Now we can…

Recombine DNA of 2 different organisms + HOW? . . . Frost on Plant survives

Restriction Enzymes Naturally occuring in BACTERIA Restriction Enzymes Attack viral DNA when it invades the bacteria NOT FOUND IN HUMANS… WE HAVE AN IMMUNE SYSTEM!

Restriction Enzymes

Restriction Enzymes 1. Recognize a specific DNA sequence called a RESTRICTION SITE 2. Cut along the DNA backbone 3. Can form 2 kinds of ends Sequence CCCGGG Sequence GAATTC G AATTC CCC GGG G GGG CCC CTTAA STICKY ENDS BLUNT CUT

Restriction Enzymes are like DNA Scissors G CTTAA AATTC G

Ligase -DNA Glue http: //www. dnalc. org/ddnalc/resources/restriction. html

Summary. . What is Genetic Engineering…incorporating genes of interest and inserting these genes into the DNA of other living organisms. Why do we do it?

-improve the foods we eat Frost Resistant tomatoes, strawberries, peaches

Cows Produce more milk

Meatier cows and chickens

Produce Human proteins INSULIN HUMAN GROWTH HORMONE