1. Exam 2 M 10/29 at 7-8:30pm in UTC 2.102A
Review Th 10/25 at 5-7pm in WRW 102
Bonus #1 due 10/24 in class
Last day to drop with a ‘Q’…10/24

2. What is the largest scale experiment that is being currently performed?

3. Genetically Modified Organisms

4. Human resource production and use

5. from Teosinte Maize By artificial selection that
began ~10,000 years ago.
Fig 20.19

6. Wild Brassica oleracea: small side buds
Artificial selection
Number of Individuals
Size of buds (cm) 1 2 3
1. Select individuals
that have the largest
side buds and breed them.
2. Of the offspring,
select individuals that
have the largest side
buds and breed them.
3. Of the offspring,
4. After several
generations, bud size
increases dramatically.
Figure: 1.3a
Caption:
(a) This plant is a wild member of the mustard family. It is the progenitor of broccoli, Brussels sprouts, and other domesticated plants.
Brussels sprouts:
extremely large side buds

7. Different foods
from one
species of plant.
Created by
artificial
selection.

9. Agricultural
Hunter-
Gatherer
Industrial

10. Genetic Engineering: Direct manipulation of DNA

11. Global Area planted with GM Crops
size of Texas, 172
Millions of Acres

13. Common Genetically Modified Crops
% of Total US Acres

14. Why Change a Plant’s 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
Chemical remediation

15. Types of Genetically Modified Crops
Herbicide Tolerance; Insect Resistance; Viral Resistance

16. Is Genetically Modifying Plants a Good Idea?
size of Texas, 172
Millions of Acres

17. Is Changing an Organism’s DNA a Good or Bad Idea?
Genes flow within species and between species.
Are GM foods safe for the environment?
Are GM foods profitable for:
Consumers, Farmers, and Companies?

18. Pollution in Gulf of Mexico from run-off in the Mississippi river
AAL 25.17

19. Pollen is easily transferred from plant to plant, and to related species.

20. GM crops found in Oaxaca and other MX states
Genetic information moves.
GM crops found in Oaxaca and other MX states
GM crops illegal

21. GM crops found in Oaxaca and other MX states
Genetic information moves, and is self-replicating.
GM crops found in Oaxaca and other MX states
GM crops illegal

22. Is Changing an Organism’s DNA a Good or Bad Idea?
Genes flow within species and between species.
Are GM foods safe for the environment?
Are GM foods profitable for:
Consumers, Farmers, and Companies?