BIO 141 1st Edition Lecture 8 Outline of Last Lecture II. Artificial SelectionIII. Biological Species Concept (BCS)IV. Ecologically IntimateOutline of Current Lecture V. Genetic EngineeringVI. GenesVII. Plant BreedingCurrent LectureGenetic Engineering- Using technology to change the genes of an organism. Gene- Hereditary unit on a chromosome that produces a protein.- Held in our genetic code.- What decides the color of your hair, eyes, the texture of your hair, etc.- Traits are dominant or recessive. One half from mother and one half from father.Traditional Plant Breeding- Slow- Only exchange genes within same species. - Monsanto vs. Schmeiser 4.13Why genetically engineer?- More production (bigger) (trout picture comparison)- Healthier foods (Golden rice, modified for Vitamin A)- Herbicide-resistant plants- Insect-resistant plantsEngineering plants: SoybeansThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.1. Isolate gene of interest: Remove herbicide-tolerant gene from bacterial plasmid.2. Put gene into vector: Bacterial plasmid, ends match up. Plasmid is recombinant: containsDNA from >1 source. 3. Vector puts new gene into organism. Vector puts genes into novel organism. Plants is now transgenic. Why genetically engineer?- “Pharm”aceutical organisms.o Cystic fibrosis proteinso Multiple sclerosis proteins- Engineering human insulin in bacteria. Bacteria produce cheap human insulin. - Socioeconomic Implications. rBGH produced in E. coli.Other Potential Products- Drought resistance- Salt tolerance (from hurricanes)- GM trees- Disease resistance- Vaccine-producing
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