Presentation on theme: "Chapter 1 Science for the New Millenium"— Presentation transcript:
1 Chapter 1 Science for the New Millenium What is biotechnology ?Chapter 1Science for the New Millenium
2 What is biotechnology ?The study & manipulation of living things or their component molecules, cells, tissues or organs.Humans have been manipulating living things for centuries to provide plants and animals with desired characteristics – see figure 1.16Examples: Increased milk production, lean meat product, increased egg production, increased yields per acre in wheat, rye, corn, rice, soybeans, increased disease resistance in crops.
3 More Biotech examples Seedless watermelons More apple varieties Roses with new fragrances and colorsDog breed varietiesFlavr Tomatoes – ripen longer on the vineHuman insulin to treat diabetesLovastin – grown w/bacteria to create medication to treat cholesterol“stonewashed” jeans with enzymesCloning body parts for human transplants
4 Goals of biotech company Make a product that is useful to societyGenerate profit for company to function and continue to conduct product researchR& D = Research & Development
5 4 categories of biotech companies Industrial & EnvironmentalAgricultureMedical/PharmaceuticalDiagnostic Research
6 University & Government labs Conduct “pure science”Strong working relationship with Biotech CompaniesResearch is based on industry needs so usually industry provides fundingExamples: HIV research, malaria, diabetes, viral therapies, crop researchNIH & CDC: treatments for heart disease, cancer, Alzheimers
7 GMO – Genetically modified organism Use restriction enzymes to cut DNA sequence of choice -----add specific enzymes to paste sequences together = RECOMBINANT DNA –rDNAExamples: proteins in pregnancy tests, enzymes that increase juice production in apples, strawberry plants that can grow in cold climate, insect resistant cotton, virus resistant papaya, vitamin A production in rice to combat blindness in 3rd