Genetic Engneering - MrsBorrellsclass

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14 Δεκ 2012 (πριν από 4 χρόνια και 8 μήνες)

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Genetic Engineering

GMOs
, Selective Breeding, Gene Therapy, Cloning

Selective Breeding


Controlling the way organisms breed for desired traits


Genetically Modified Organisms
(
GMOs
)


An organism whose genetic make
-
up has been somehow
modified by humans for our benefit.


Bt plants: insecticide, golden rice,
flavr

savr

tomato

More GMOs


Cows engineered to produce HGH (Human Growth
Hormone)


Nitrogen producing plants
-
decreased need for fertilizer


Controversy


Is it safe?


Antibiotic resistance


Natural populations/ecosystem


Genetic modification of animals
& humans

Spiders + goats…


Canadian
scientists combined
spider DNA with the cells
of lactating goats, they produced silk with their milk




That’s weird right?

Pros


Growing replacement organs for organ transplants


Preventing disease


Medical research: simulating human diseases

Gene Therapy


Introducing a healthy gene to replace a diseased gene in
a human being.


Viral vector

Gene
Therapy
for
Cystic
Fibrosis


Jesse
Gelsinger


Volunteered for
experimental gene therapy
in 1999


18 yrs old


Died a few days after from
massive reaction to viruses

Cloning


How is it
done?

What is wrong and what is right?


Ethics, where do we draw the line? Do we draw the line?


Is it safe?


GMOs

disrupting the balance of nature?


I Am Legend Zombies?



Read Chapter 15


Chapter 15 Assessment pg 442


# 4, 5, 6, 23, 27, 28, 29


Choose one topic addressed in this presentation and
write an opinion essay. Include facts to support your
opinion. Include potential pros and cons. Additional
research is encouraged