Long- lasting tomatoes - Urspringschule

igocheddarBiotechnologie

14 déc. 2012 (il y a 8 années et 7 mois)

576 vue(s)

Genetic modification

By:

Ji Eun Kim


Cecilie Eide


Ola Skoczek


Simon Hagenmaier


Dorottya Papi


Renaat Myny


Sam Chiers


Melodie Haelters


Index

1.

Definition

2.

History

3.

Advantages and disadvantages

4.

Examples ( golden rice, sweet corn and
long
-

lasting tomatoes)

5.

European regulations about labelling

6.

Concerns

Environmental / Health

7.

Ethical problems





1.
Definition



What?


The manipulation of a living organism’s genetic


How?


By eliminating, modifying or adding copies of specific genes often
from other organisms through modern molecular biology techniques.


Other names:

Recombinant DNA (rDNA)




Genetic engineering




Gene splicing




2. History


1953:

Structure of DNA deduced (Watson, Crick, Wilkins, Franklin).





1968:

DNA code deciphered


1973:

First recombinant DNA


1990:

First genitically modified food (tomato).




1994:

The first GM food was launched on the American market, it were

tomatoes.



Two years later also GB launched the tomatoes into their

market.



2002:

60 million acres of GM food were cultivated



2003:

70 million acres were cultivated



2005:

90 million acres were cultivated



Conclusion

3.Advantages and disadvantages of GM
food


Desired characteristics of food are achieved and in a shorter time.



Improves nutritional value



Many people rely on GM food for medicines



Gene technology is the best solution to the problem of world
hunger

A. Advantages

B. Disadvantages



Unacceptable to some groups to copy genes.



Interfiere in food chain



Genetically engineered animals may suffer more health problems



Allergic reactions


Golden rice

Advantage:

It contains Vitamin
-
A,

so children in developing

countries won’t become blind




Disadvantage:

Poor countries become

depentent on rich countries

which have the technics for

engineering


Sweet corn

Advantages:

-
No longer use of insecticides

-
The farmer don’t need to deal
with toxic


Disadvantages:

-
Insects can become resistant
to the poison

-
Endangered butterflies are in
bigger threat


Long
-

lasting tomatoes

Advantages:

-

GM tomatoes can remain fresh
longer

-

GM tomatoes can tolerate a
lengthier transport time

Disadvantage:

-
Tomatoes are resistant to
antibiotics


5. European regulations about labelling






Eu law

:

labelling if the product has more than 0.9 percent of GM


DNA in the product.

Such as: GMO
-

soja an GMO
-

sweet are labelled as GMO products.

Other derivatives don’t have to be mentioned on these product’s label.

(For example sugar, …)

But most producers don’t label their products because they don’t want
to lose their consumers or the label they put on the product is very
small. (see these pictures)

6. Concerns

A. Environmental


B. Health

o

Effect of herbicide tolerant and insect resistant GM crops

o

the growth of GM crops

o

“Genetic Pollution”

o

weakened immune system

o

Hidden Allergens

o

Increased antibiotic resistance

7. Ethical Problems


Christians


GM


unacceptable intervention

A. The first one is ethic itself

B. The second one is the question if it will feed the world


Manipulated food = bigger, better and more crops


This could be a solution for the famine in the poor countries.

But…