Biotechnology

portertoaststicksBiotechnology

Oct 23, 2013 (3 years and 9 months ago)

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Biotechnology

What is biotechnology?


Bio

the use of biological

(life) processes


Technology

solve

problems or make

useful products

10

What does biotechnology produce?


Foods



Vaccines



Antibiotics



Vitamins



Biodegradation


Selective breeding


9

How does biotechnology work?


Manipulating an organism’s genome
to



alter microbes, plants, and animals for
our
benefit


correct
genetic defects in humans


8

Classical Plant Breeding
:

Genetic modification following
introduction of large amounts of
undefined DNA from a genetically
similar source.

Plant Biotechnology
:

Genetic modification of a plant
cell by introduction of defined
DNA(s) from a genetically
different source.

7

Benefits


Agricultural Biotechnology


Increase yield


Enhance nutritional value


Environmentally friendly pesticide


Bio
-
medical devices


Reconstructive surgery


Bone, cartilage, skin grafts


Forest Biotechnology


Grow more wood


Conserve land


Fight a changing climate

6

Recombinant DNA


Combining
DNA from
two
different
organisms

5

Useful Properties of DNA


Restriction
enzyme
(endonucleases)
can cut DNA at
specific sites,
leaving sticky ends
for insertion of new
DNA

4

3

Difficulties in Genetically Engineering
Humans


Inserting gene in correct cells


Inserting gene so it is expressed
correctly



Orientation



Regulation


Controlling virus vector


Ethical issues

2

Other Issues


How will genetically engineered
organisms affect environment
?



Spread of genes to other organisms
?



Who will decide?

1

0