or preparation, losing their initial characteristics, thus becoming unfit for consumption and even dangerous for human health and life. Food poisoning is a condition caused by food or drink contaminated with pathogenic microorganisms such as bacteria, viruses or parasites. In summer, due to high temperatures, such microorganisms multiply very rapidly perishable foods. The increased risk of contamination is mainly caused by improper hygiene conditions, cooking, improper food storage and preservation
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Generalized and Specialized Transduction There are several mechanisms in which bacteria transfer genes with one another. Vertical gene transfer is the transfer of genetic material during cell division. Horizontal gene transfer, on the other hand, is the transfer of genetic material between different species of bacteria; three types are found. Conjugation is the transfer of DNA by direct contact with the cell. Transformation is the uptake of genetic material from the surrounding. Transduction is
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chronic, and lasting a month or more, or it can be mild or aseptic. Acute bacterial meningitis is the most common form of meningitis.Meningitis is a disease that can be passed from person to person (contagious). It is caused most often by viruses or bacteria that infect the tissues, meninges and sometimes the fluid (cerebral spinal fluid, or CSF) that surround the brain and spinal cord. Organisms that cause meningitis can be passed from one person to another or passed from rodents and insects to
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uncultured community sample. 16S rRNA genes will distinguish bacteria and represent the microbial diversity of the sampled elliptical. An estimate of the cleanliness of the elliptical will be made based on species-abundance as well as evidence of any pathogenic strains. We will also compare and contrast respective populations of bacteria on clean and disinfected ellipticals to assess disinfectant effectiveness. Methods We collected bacteria from the elliptical, purified and amplified the total community
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| |Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color |Chloropasts | |Digests excess or worn-out cell parts, food particles and invading viruses or bacteria |Lysosome | |Small bumps located on portions of the endoplasmic reticulum |Ribosome | |Provides temporary storage
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we use Koch's postulates instead of Bassi's or Pasteur's postulates? Answer #1: Koch was the major mind in establishing that microorganisms cause a specific disease. He was able to prove that certain bacteria was present in the blood of the infected person or animal, but the presence of the bacteria could have been caused by the disease. Koch proved that certain infectious diseases are caused by certain microorganisms that can be isolated and cultures onto a media. The requirements Koch established
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Why Does The Same Drug Affect People Differently? By: Brianna Morse Basic Genetics and the Inheritance of Genes What are Genetics? Have you ever wondered why you have your mother’s eyes of your father’s hair color? The simplest answer for this would be genetics. Genetics is the study of heredity or inheritance. Genetics helps to explain how traits are passed from parents to their young. Parents pass traits to their young through gene transmission (for example hair and eye color, shape of ears
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found in nearly all parts of the environment, foods, and even inside in all organisms. Majority of this bacteria is harmless, but it could also be potentially beneficial and even disadvantageous. Research has proven that some types of E. Coli can be the source of illness such as diarreach urinary tract infections, and many other varieties of illnesses. It is possible you many be exposed to this bacteria from the contamination found in our daily food and water (It is commonly present in raw and uncooked
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three agencies that overlook the making and distributing of genetically modified foods, giving us peace of mind that they are regulated and tested before being distributed. GMO’s have, most importantly, helped us in curing fruits and vegetables of viruses and bacterial infestations, as well as environmental changes that the food is not used to. Farmers have been modifying the pollination of their crops by spreading the pollen of one high yield plant on to another in hopes that the right genes
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governments and nations will not achieve good results in improvement of public health. Example from the learning material about the spread of the disease:" In 1996, a shipment of strawberries from Guatemala that was infected with cyclospora bacteria led to an outbreak of illness in the United States that sickened
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