GE CLST M71A Lecture Notes - Lecture 9: Agrobacterium Tumefaciens, Complementary Dna, Plasmid

• School: UCLA
• Department: General Education Clusters
• Course: GE CLST M71A
• Professor: Rensel, M.A.; Le Goff, A.G.; Panofsky, A.L.

Document Summary

Genetic engineering (aka genetic modification): the deliberate modification of the characteristics of an organism by manipulating it genetic material. Artificial selection: the process by which individuals are selected for specific traits they possess and then bred. Rna interference: switching off selected genes with rna. *transgenics: inserting selected genes using recombinant dna methods. Glyphosate kills plants by preventing formation of amino acids during growth. Bred into corn, soy, canola, cotton, etc. ( roundup ready crops) Superweeds (weeds evolve resistance to glyphosate more herbicide applications or more expensive/intensive procedures) Bacillus thuringiensis (bacteria) produces endotoxin kills some insects (caterpillars) Superbugs: insects might evolve resistance to the toxin, requiring additional or alternate methods of control. Concerns w/ eating transgenic foods (since bt is a toxin, can its expression in food affect the human body?) Flood-tolerant rice flood resistance gene from another variety of rice. Golden rice) rice plant leaves can make beta carotene, but endosperm cannot.