Transcript Lecture PPT
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert P. Kausch
life edu.org
OnCampus Live
BCH 190, MIC 190, AFS 190, NRS 190, PLS 190
OnLine BCH 190
A Sweeping General Survey on Life and Biotechnology
A Public Access College Course
The University of Rhode Island
Issues in Biotechnology:
Biotechnology, Our Society and Our Future
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert Kausch
Kimberly Nelson
BCH 190
Section I. The Mechanics of DNA: What is Life
Section II. The Applications of Biotechnology
A Sweeping General Survey on Life and Biotechnology
A Public Access College Course
The University of Rhode Islandlife edu.org
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert P. Kausch
life edu.org
Part II
The Applications of
Biotechnology
A Sweeping General Survey on Life and Biotechnology
The University of Rhode Island
Agricultural Biotechnology
© life_edu
Lectures 13 and 14
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert P. Kausch
life edu.org
Agricultural Biotechnology
Part I Where Does Our Food Come From?
Part II DNA-based Biotechnology
And Modern Agriculture
Part III. Issues, Controversies and Concerns
a. Setting the Stage about Food and Agriculture:
b. Issues, Controversies and Concerns
c. The Organic Food Debate
Part IV. The Ethics
of Agriculture
© life_edu
Part V. Renewable Energy and the Future of Humanity
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert P. Kausch
life edu.org
Agricultural Biotechnology
Part IIIc. Issues, Controversies and Concerns
The Organic Food Industrial Complex
© life_edu
Crop Plants
Conventional farming
Organic farming
Organic farming
No Synthetic Pesticides
No Synthetic Fertilizers
No GMOs
Is Organic Food
Better for You?
© life_edu
Is Organic Food
Better for the
Environment?
© life_edu
Is Organic Food
Safer?
© life_edu
Is Organic Food
Better for You?
© life_edu
Conventional Foods
Processed Foods
Organic Foods
Natural Foods
Whole Foods
Are Organic Foods Really Better For You?
What Consumers really want is good, clean, safe food.
Is that too much too ask?
Organic Foods promise safety from pesticides.
No synthetic fertilizer
No GMO
Natural Foods
© life_edu
Organic farming
No Synthetic Pesticides
No Synthetic Fertilizers
No GMOs
“Our goal of no-GMO ingredients
in our Whole Foods market brand
and 365 products is focused on
accessing ingredients derived from
non-genetically modified seeds.
Unfortunately, absolute "GMOfree" guarantees cannot be made on
any manufacturer's product. Not
only is it impossible to test every
container of product, but currently
there is no system in the United
States to guard against drift from
farmers using GMO seed that could
potentially contaminate non-GMO
© life_edu
crops.”
Is Organic more nutritious?
Sixty-eight percent of the respondents in a recent US poll said a
product labeled "USDA Certified Organic" would
indicate the food was safer than non-organic foods.
Sixty-seven percent believe the label would indicate food of
higher quality than non-organic foods.
Sixty-two percent believe the label would mean the food is
more healthful for consumers than non-organic food.
© life_edu
Are organic foods more nutritious?
The head of the U.S. Organic Trade Association recently had
to admit organic food was no more nutritious than any other
food and that organic food standards had nothing to do with
food safety.
© life_edu
Is Organic Food
Better for the
Environment?
© life_edu
Is the Organic solution viable for
sustainable world agriculture?
Organic Advocates Argue: Wiser Land Use.
Less Pesticides. More Biodiversity.
Sustainable Agriculturists Argue….
© life_edu
Is the Organic solution viable for
sustainable world agriculture?
Critics argue:
Feeding Humanity From Organic Fields
Would Mean Cropping Twice As Much
Land As We Currently
Plant.
© life_edu
•Gene transfer to other crops or wild plants.
•Change in herbicide use patterns
•Squandering of valuable pest resistance genes
•Poisoning of wildlife
•Creation of new or worse viruses
•Un-assessable long term risks
Are There Unknown Risks
to the Environment?
© life_edu
Pesticides
Kill
Insects
Indiscriminately
A butterfly beats it’s wings
in the Amazon…
and changes the weather
in Chicago.
© life_edu
In 1962, Carson wrote: “A truly extraordinary variety of
alternatives to the chemical control of insects is
available. Some are already in use and have achieved
brilliant success. Others are in the stage of laboratory
testing. Still others are little more than ideas in the
minds of imaginative scientists, waiting for the
opportunity to put them to the test. All have this in
common: they are biological solutions, based on
understanding of the living organisms they seek to
control, and of the whole fabric of life to which these
organisms belong. Specialists representing various areas
of the vast field of biology are contributing—
entomologists, pathologists, geneticists, physiologists,
biochemists and ecologists—all pouring their knowledge
and their creative inspirations into the formation of a
new science of biotic controls”
Is Organic Food
Safer?
© life_edu
Organic vs. Transgenic
Wild-type corn
variety with
secondary
fungal infection
Bt corn resistant to
corn borer damage,
resulting in less
secondary fungal
infections.
© life_edu
What the public wants
is safe food that is good.
So while the organic standards may attempt to
ensure freedom from pesticide residues, the freedom
of organic foods from vermin, mycotoxins and other
contamination may be less certain.
Mycotoxins
Organic farmers are more likely to let their crops suffer rodent and
insect damage, which leads to more fungal infections and more
natural toxins in the food.
© life_edu
Perhaps New Organic
Food Standards Could
Use Warning Labels
Organic Products Are
Not Necessarily Tastier,
Healthier Or
Pesticide-Free
© life_edu
Organic agriculture is not a
food safety claim (FDA)
Organic means only that the farmers use organic fertilizer instead
of chemical fertilizer and "natural" pesticides such as copper
sulfate (broadly toxic) and sulfur (a soil contaminant).
© life_edu
Price Comparison
Conventional vs Organic
Price Comparison
Conventional vs Organic
Price Comparison
Conventional vs Organic
Why is Organic Food So Expensive?
Sustainable
Agriculture
Is Organic Production Viable on a Large Scale?
Are GM crops a Threat to Biodiversity?
Does Local Food Production Really lower the
Carbon Footprint?
Does Organic Food really lower your exposure
to pesticides?
© life_edu
22. It is interesting that all life on this planet uses information
in the form of either DNA, RNA or both; that the same bases
are used; and, that the genetic code is almost always the same
using three of those bases to code for one of twenty amino
acids. (And it’s the same twenty amino acids!) It is also
interesting that RNA uses the base Uracil in place of Thymine.
The sequence GATTACA in DNA will code for what sequence
in RNA in a Genetically Modified plant?
a. CUAAUGU
b. TATTACU
c. CTAATCT
d. TGCCUAG
e. TUGGTCU
23. Genetic engineering of crop plants is controversial because:
a. Uncertainty about safety and Regulatory issues
b. Big science, big companies “Crossing the line” and a Distrust
of Science
c. Environmental concerns
d. Globalization, Right of choice (labeling) and Food culture
issues
e. All of the issues shown play a role in the controversy
24. Organic Farming promises
a. Only no synthetic pesticides
b. Only no Synthetic Fertilizers
c. Only no GMOs
d. No synthetic pesticides, no synthetic fertilizers and no
GMOs
e. Food that is safe without food borne diseases like E coli.
25. Organic Foods are know to be better for you since
a. They have been shown to have quantitatively higher levels of
proteins compared with their conventional counterparts
b. They have been shown to have quantitatively higher levels
of vitamins compared with their conventional counterparts
c. They have no GMOs which have been demonstrated to have
negative effects on human health
d. They are only grown from heirloom varieties that have not
been robbed of their inherent nutritional value the way
conventional crops have been.
e. They are safer than their conventional counterparts
regarding food borne diseases like E coli.
Sustainable Agriculture
Responsible Land Management Practices
Water Use Efficiency
© life_edu
Maarten J.
Chrispeels,ed.
Director
San Diego Center for
Molecular Biology
© life_edu
Issues in Biotechnology:
The Way We Work With Life
Dr. Albert P. Kausch
life edu.org
Agricultural Biotechnology
Part IV. Issues, Controversies and Concerns
The Ethics Of Agricultural Biotechnology
© life_edu