Transcript Biotechnology and Genetic Engineering

Biotechnology and
Genetic Engineering
_______________________________
•
We can now grow new body parts and soon donating blood
will be a thing of the past, but will we go too far?
Photo of a mouse
growing a "human ear"
Genetic Engineering
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The human _____________________________________ of a cell.
______________________________ - Genetically engineered
DNA prepared by splicing genes from one species into the
cells of a different species. Such DNA becomes part of the
host's genetic makeup and is replicated.
genetically engineered tobacco plant with a __________________________
Recombinant DNA
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The ________________________________
_______________________________
ex. Bacterial DNA + human gene for
insulin production
Tobacco Plant DNA + firefly DNA for
bioluminescence plant
Forming Recombinant DNA
Desired Gene
DNA from target
organism
Recombinant
DNA with
gene of
interest
Golden Rice
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Golden rice is to develop rice varieties
that _________________ (beta-carotene)
as a means of alleviating vitamin A
deficiencies in the diets of
disadvantaged people in developing
countries. (traditional rice varieties do
not produce provitamin-A).
Growth hormone and therapy
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________________ controls
several complex
physiologic processes,
including growth and
metabolism.
Two baby mice - same
age
Human Growth hormone
gene inserted into the
embryo of the mouse on
the right causing rapid
growth
The mouse on the left is
a normal sized mouse
Insect Resistance
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'Bt' is an ______________________, marketed
worldwide for control of many important
_______________ - mainly caterpillars of
the Lepidoptera (butterflies and moths),
mosquito larvae, and black flies that
vector river blindness in Africa.
Results of insect infestation on Bt (right) and non-Bt (left) cotton balls.
Vaccines
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Banana is currently being
considered as an __________
___________________________
An edible vaccine doesn't
need sterile syringes, costly
refrigeration, or multiple
injections
WHO finds more than 2
million children die
worldwide each year from
diarrhea caused by
Escherichia coli and Vibrio
cholara bacteria can be
prevented easily with
vaccines.
Land Mines
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Neal Stewart at the
University of North
Carolina is developing
______________________
______________________
Plants could be ideal
biosensors for land
mines as seeds would
be spread widely and
evenly in a suspect field
The gene that can
announce the presence
of land mines is GFP
GFP and mice
Glo fish

Fluorescent zebra fish
were specially bred to
help ________________
_____________________.
By adding a natural
fluorescence gene to
the fish, scientists are
able to quickly and
easily determine when
our waterways are
contaminated
Genetic Engineering
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Genetic engineering techniques are used in a variety of
industries, in agriculture, in basic research, and in
medicine.
This genetically
engineered cow
__________________
and can help to
increase dairy
production.
Genetic Engineering
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There is great potential for the development of useful
products through genetic engineering
• EX., ________________________________________________
____________________________________________________
Seedless
watermelons are
genetically
engineered
Ethical & Moral Concerns
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___________is the
production of
________________
cells or
organisms.
Ethical & Moral Concerns
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___________ was the
world's first cloned
mammal.
Two calves cloned from
cells in cow's milk, Japan.
Dolly the sheep 1996 - 2003
Gene Therapy
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Gene therapy is a technique for ___________________________
_________________________________ for disease development.
Possible cures for:
– diabetes
– cardiovascular disease
– cystic fibrosis
– Alzheimer's
– Parkinson’s
– and many other diseases is possible.
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Is it right to use
cloning to create
an entirely new
human being?
Is it ethical to
create an
embryonic copy
of John Doe to
supply cells to
keep John alive?
Does a
multicellular ball
of tissue -- an
embryo -- have
the same rights
and status as a
human being?