5/2 Exam 3 in ART 1.102

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5/2 Exam 3in ART 1.102 Review 4/30 in class
and 5/1 at 5pm in GRG 102 Bonus 3 is due
now. 4/30 homework 4(12 pts max)
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Agricultural
Hunter- Gatherer
Industrial
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from Teosinte
Maize
By artificial selection that began 10,000 years
ago.
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Different foods from one species of plant.
Created by artificial selection.
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Wild member of Brassica oleracea small side buds
Brussels sprouts extremely large side buds
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Human resource production and use
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Human resource production and use
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Land use in USA, 1997
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Agricultural
Hunter- Gatherer
Industrial
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nucleus
from DNA the Information
DNA
RNA
cytoplasm
to proteins the Actors
protein
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Combinations of 3 nucleotides code for each 1
amino acid in a protein.
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Genetic Engineering Direct manipulation of DNA
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Genetic Engineering Direct manipulation of DNA
Genetic Engineering of plants using Agrobacterium
is very common.
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Agrobacterium infect plants, inserting their DNA
into the plants genome.
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Transforming plants
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Global Area planted with GM Crops
size of Texas, 172
Millions of Acres
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Common Genetically Modified Crops
of Total US Acres
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Why Change a Plants DNA?

• Can change plant so that it has new or different
  characteristics
• Produce needed protein
• Insect resistance (Bt toxin)
• Herbicide resistance (Round-up)
• Drought or other stress resistance

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Types of Genetically Modified Crops
Herbicide Tolerance Insect Resistance Viral
Resistance
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Is Genetically Modifying Plants a Good Idea?
size of Texas, 172
Millions of Acres
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Is Changing an Organisms DNA a Good or Bad Idea?

• Genes flow within species and between species.
• Are GM foods safe for the environment?
• Are herbicide or insect resistant plants safe to
  eat?
• Are GM foods profitable for
• Consumers, Farmers, and Companies?

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Pollution in Gulf of Mexico from run-off in the
Mississippi river
AAL 25.17
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Pollen is easily transferred from plant to plant,
and to related species.
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Genetic information moves.
GM crops found in Oaxaca and other MX states
GM crops illegal
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Genetic information moves, and is
self-replicating.
GM crops found in Oaxaca and other MX states
GM crops illegal
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Is Changing an Organisms DNA a Good or Bad Idea?

• Genes flow within species and between species.
• Are GM foods safe for the environment?
• Are herbicide or insect resistant plants safe to
  eat?
• Are GM foods profitable for
• Consumers, Farmers, and Companies?

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N. Am. Forest
An inter-connected ecosystem
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Danger of GM crops to other organisms
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Danger of GM crops to other organisms
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Danger of GM crops to other organisms
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Danger of GM crops to other organisms
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Danger of GM crops to other organisms
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Many Questions, but Few Answers?

• Genes flow within species and between species.
• Are GM foods safe for the environment?
• Are herbicide or insect resistant plants safe to
  eat?
• Are GM foods profitable for
• Consumers, Farmers, and Companies?

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Common Genetically Modified Crops
of Total US Acres
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Many Questions, but Few Answers?

• Genes flow within species and between species.
• Are GM foods safe for the environment?
• Are herbicide or insect resistant plants safe to
  eat?
• Are GM foods profitable for
• Consumers, Farmers, and Companies?

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Where does the information about genetically
modified foods come from?