Cocci bacteria exchange the genetic material to the DNA of the host cells therefore causing ailments (Heritage, 2006). In this case, the pathogen first attaches itself through infection to the host living thing, then penetrates to the cells and again attaches to the host cells. Some species of the cocci bacteria have the capability to generate very resistive structure called endospores (Heritage, 2006). This resistive
Name 4 examples of genetically modified crops. Pesticide resistant rape plants, Insecticide sweet corn, golden rice which contains large amounts of vitamin A, Long-lasting tomatoes 4. Which genetically modified foods are sold now and where are they grown? Soya Beans, Sweet Corn,
Agriculturally, plants can be genetically transformed to be resistant to pesticides, spoilage, and frost. In bioremediation bacteria can be transformed to be able to digest oil from oil spills. For medicinal purposes, gene therapy is being used to help people with diseases caused by defective genes. The GFP protein is a green fluorescent protein that is the source for bioluminescent jellyfish. This protein causes the jellyfish to glow in the dark.
3. Why is it necessary to make pure subcultures of organisms grown from clinical specimens? So that the organism can be identified and tested for antibiotic sensitivities. 4. What kinds of clinical specimens may yield a mixed flora in bacterial cultures?
The sexually transmissible disease gonorrhea has become increasingly resistant to treatment with antibiotics. What is the most likely scientific explanation? a) The gonorrhea bacteria learned to avoid antibiotics b) The gonorrhea bacteria changed their genes when they sensed antibiotics c) Antibiotic-sensitive gonorrhea bacteria died out, but antibiotic-resistant gonorrhea bacteria have flourished and persisted d) The antibiotic increased the mutation rate in the gonorrhea bacteria e) Both b and d 26. Which statement best describes the relationship between plants and animals on earth? a) Plants produce O2 and sugars from CO2 b) Animals produce CO2 and H2O from sugars and O2 c) Plants produce O2 and sugars and animals produce CO2 and H2O d) Animals produce O2 and sugars and plants produce CO2 and H2 27.
The Antibiotic Decrease Yeast Cells Francine Rodriguez Biology 1401 Lab section Department of Biology, The University of Texas-Pan American March 8, 2013 Abstract: The main focus in this experiment was to find out antibiotics affect yeast cell cultures in a controlled environment. We imagined we owned a business in which a part of the business is to grow yeast (Saccharomyces cerevesiae) to be distributed as dry yeast for bakeries and breweries. Profits depend rapid, economical production a large number of yeast cells. We had observed that there is apparent difference in the yield of yeast cell when it comes in contact of an antibiotic. It appeared that that antibiotic had decreased the number of yeast cells.
Nitrogen fixing bacteria in the roots of leguminous plants reduce atmospheric nitrogen to ammonium using ATP and reduced NAD. The ammonium ions released into the soil are oxidised by nitrifying bacteria firstly to nitrite, and then to nitrate. This oxidation increases the nitrogen content in the soil which plants can use to produces many useful molecules including amino acids, proteins, DNA and ATP. The formation of these ions forms part of the ecological nitrogen cycle which plays a key role in sustaining life on this planet. Plants are the producers for an ecosystem.
|Staphylococcus Aureus in a clinical setting | | | |Microbiology Laboratory, Sierra College, Rocklin, CA 95677 | | A culture taken from a clinical setting was grown and isolated expected to grow Staphylococcus aureus due to the high numbers of | |infections. The pure isolated sample is a Gram positive Staphylococcus that was identified as Staphylococcus auricularis by automated| |nucleic acid sequencing. A series of enzymatic test were run with abnormal results not matching proven data. The failed hypothesis | |revealed an organism that may be utilized as a waste water treatment product. | | | INTRODUCTION In the clinical setting there are many microorganisms thriving.
This would be a useful source if contrasted against a more critical evaluation of Pollan’s work. Pollan, M. (2002). The botany of desire: A plant’s-eye view of the world. New York: Random House. Pollan outlines the history of four crops-- apples, tulips, marijuana and potatoes.
Lynn Margulis: She is best known for her theory on the origin of eukaryotic organelles and her contributions to the endosymbiotic theory. Francesco Redi: Improved the study of spontaneous generation. John Needham: Improved the study of spontaneous generation. Lazzaro Spallanzani: Made important contributions to the experimental study of bodily functions, animal reproduction, and discovered echolocation. Louis Pasteur: Remembered for his breakthroughs in the causes and preventions of diseases.