MS-SCI-LS-Unit 3 -- Chapter 9
... in Figure 1. A bacteriophage (bak TEER ee oh fayj) is a virus that infects bacteria. In fact, its name means "bacteria eater." Although viruses may look different from one another, they all have a similar structure. a> All viruses have two basic parts: a protein coat that protects the virus and an i ...
... in Figure 1. A bacteriophage (bak TEER ee oh fayj) is a virus that infects bacteria. In fact, its name means "bacteria eater." Although viruses may look different from one another, they all have a similar structure. a> All viruses have two basic parts: a protein coat that protects the virus and an i ...
microbio 62 [4-20
... Haemophilus influenzae i. just HATES children (osteomyelitis, pneumonia in infants, meningitis too??) ...
... Haemophilus influenzae i. just HATES children (osteomyelitis, pneumonia in infants, meningitis too??) ...
01 - ermshouse72
... 11. What are three ways that prokaryotes are like eukaryotes? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 12. What are three ways that prokaryotes funct ...
... 11. What are three ways that prokaryotes are like eukaryotes? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 12. What are three ways that prokaryotes funct ...
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... telTI1inus of 3A led to a type 0 outbreak strain being attenuated for cattle, but caUSll1g a devastating disease in pigs (Beard and Mason, 2000; Pacheco et ai., 2003). The 3A protein has also been implicated in adaptation of the virus to guinea pigs through a single amino acid change, lending furth ...
... telTI1inus of 3A led to a type 0 outbreak strain being attenuated for cattle, but caUSll1g a devastating disease in pigs (Beard and Mason, 2000; Pacheco et ai., 2003). The 3A protein has also been implicated in adaptation of the virus to guinea pigs through a single amino acid change, lending furth ...
Bacteria--Fungi Combined
... Antibiotics are widely used to kill bacterial infections—penicillin ...
... Antibiotics are widely used to kill bacterial infections—penicillin ...
STATE BUDGET EDUCATIONAL INSTITUTION OF HIGHER
... the pathogenesis of many non-infectious diseases (malignant tumours, atherosclerosis, psychic, nervous, autoimmune and others) the microbes may play the direct or indirect role. So without the knowledge of microbiology and immunology it should be impossible not only to decrease the infections morbid ...
... the pathogenesis of many non-infectious diseases (malignant tumours, atherosclerosis, psychic, nervous, autoimmune and others) the microbes may play the direct or indirect role. So without the knowledge of microbiology and immunology it should be impossible not only to decrease the infections morbid ...
Hepatitis
... substances (e.g. alcohol, certain drugs), and autoimmune condition can also tend hepatitis. There are 5 main hepatitis viruses, referred to as types A, B, C, D and E. These 5 types are of greatest concern because of the burden of illness and causes death and the potential for outbreaks and epidemic ...
... substances (e.g. alcohol, certain drugs), and autoimmune condition can also tend hepatitis. There are 5 main hepatitis viruses, referred to as types A, B, C, D and E. These 5 types are of greatest concern because of the burden of illness and causes death and the potential for outbreaks and epidemic ...
Chapter 16 - Enterobacteriaceae
... Normal Respiratory Flora In absence of disease, presence of normal flora is called “colonization” Colonizers prevent proliferation and invasion by pathogenic bacteria through competition for nutrients and receptor sites ...
... Normal Respiratory Flora In absence of disease, presence of normal flora is called “colonization” Colonizers prevent proliferation and invasion by pathogenic bacteria through competition for nutrients and receptor sites ...
IMPORTANCE OF LIVESTOCK AND LIVESTOCK DISEASES IN
... evidence from the Middle Miocene era. circa 15 million years ago. Some species migrate between various countries of southern Asia. Because of this past continuity of bat populations, and also because Microchiroptera had been poorly studied in Asia for rabies viruses (in contrast to the USA and Europ ...
... evidence from the Middle Miocene era. circa 15 million years ago. Some species migrate between various countries of southern Asia. Because of this past continuity of bat populations, and also because Microchiroptera had been poorly studied in Asia for rabies viruses (in contrast to the USA and Europ ...
Proper Shipment of Patient Specimens and Infectious Substances
... A81 – The maximum quantity of infectious substance that can be shipped by air in one package is 4L or 4kg. The maximum quantity that may be shipped via passenger aircraft is 50mL or 50g. The Special Provision A81 allows the shipment of body parts, organs or whole bodies to not be restricted based on ...
... A81 – The maximum quantity of infectious substance that can be shipped by air in one package is 4L or 4kg. The maximum quantity that may be shipped via passenger aircraft is 50mL or 50g. The Special Provision A81 allows the shipment of body parts, organs or whole bodies to not be restricted based on ...
Cleaning and Disinfection of Environmental Surfaces
... washes, scrub soaps and surface disinfectants, and is the main active ingredient found in household disinfectants. Phenols are effective against bacteria (especially Gram-positive bacteria) and enveloped viruses. Phenols are not effective against spores or non-enveloped viruses. Phenols maintain the ...
... washes, scrub soaps and surface disinfectants, and is the main active ingredient found in household disinfectants. Phenols are effective against bacteria (especially Gram-positive bacteria) and enveloped viruses. Phenols are not effective against spores or non-enveloped viruses. Phenols maintain the ...
3. Biological method (experimental infection)
... necessary to employ Hiss's serum water for testing sugar fermentation. Proteolytic activity is absent. They do not hydrolyze urea or form phosphatase. Toxin: Virulent strains of diphtheria bacilli produce a very powerful exotoxin. The pathogenic effects of the bacillus are due to the toxin. The diph ...
... necessary to employ Hiss's serum water for testing sugar fermentation. Proteolytic activity is absent. They do not hydrolyze urea or form phosphatase. Toxin: Virulent strains of diphtheria bacilli produce a very powerful exotoxin. The pathogenic effects of the bacillus are due to the toxin. The diph ...
Replication Patterns of Specific Viruses
... Part of the reason for this error rate for RNA is that there is no truly double-stranded intermediate; therefore, there is no template for error correction or “proofreading” of the newly synthesized strand as there is in DNA replication. A second reason is that RNA polymerases using RNA templates se ...
... Part of the reason for this error rate for RNA is that there is no truly double-stranded intermediate; therefore, there is no template for error correction or “proofreading” of the newly synthesized strand as there is in DNA replication. A second reason is that RNA polymerases using RNA templates se ...
A biochemical portrait of the nidovirus RNA polymerases and helicase
... structures of other +RNA virus RdRps and would thus require a processivity factor. Furthermore, additional biochemical experiments with nsp8 have shown that this protein is capable of RNA both de novo and primer extension activity of its own as well [155,156], suggesting that it is not only a very u ...
... structures of other +RNA virus RdRps and would thus require a processivity factor. Furthermore, additional biochemical experiments with nsp8 have shown that this protein is capable of RNA both de novo and primer extension activity of its own as well [155,156], suggesting that it is not only a very u ...
Specific detection of minus strand hepatitis A
... They concluded that reliable detection of minus strand HCV RNA is not yet achievable by current methods. By designing suitable primers for a modified nested PCR (TailPCR), and also by using magnetic beads technology, we have developed a method aimed at the specific detection of singlestranded RNA. H ...
... They concluded that reliable detection of minus strand HCV RNA is not yet achievable by current methods. By designing suitable primers for a modified nested PCR (TailPCR), and also by using magnetic beads technology, we have developed a method aimed at the specific detection of singlestranded RNA. H ...
structureseed
... Coronaviridae, a member of the order Nidovirales, is a family of viruses with ssRNA genomes which are a significant causative agent of common colds and other severe respiratory illness such as SARS. The coronaviruses have enveloped, non-icosahedral, pleiomorphic capsids with diameters ranging from 8 ...
... Coronaviridae, a member of the order Nidovirales, is a family of viruses with ssRNA genomes which are a significant causative agent of common colds and other severe respiratory illness such as SARS. The coronaviruses have enveloped, non-icosahedral, pleiomorphic capsids with diameters ranging from 8 ...
Document
... microorganisms (bacteria, fungi, protists) and acellular microorganisms viruses, virus-like organisms (viroids) and prions. Prokaryotic and eukaryotic microorganisms. Bacterial cell structures and functions. Bacterial metabolism and genetics. Classification and characterization of Gram-positive bact ...
... microorganisms (bacteria, fungi, protists) and acellular microorganisms viruses, virus-like organisms (viroids) and prions. Prokaryotic and eukaryotic microorganisms. Bacterial cell structures and functions. Bacterial metabolism and genetics. Classification and characterization of Gram-positive bact ...
counting viruses in mat - Research Explorer
... benthic environments with high microbial activity and possibly high viral densities, yet viral abundances have not been examined in such systems. Existing extraction procedures typically used in benthic viral ecology were applied to the complex matrix of microbial mats but were found to inefficientl ...
... benthic environments with high microbial activity and possibly high viral densities, yet viral abundances have not been examined in such systems. Existing extraction procedures typically used in benthic viral ecology were applied to the complex matrix of microbial mats but were found to inefficientl ...
Study Guide Final 244 Lecture Exam
... 37. Know the biomedical significance of plasmids and some of the capabilities they code for 38. Be able to describe the different types of mutations and their effects (i.e. missense mutation, nonsense mutatio ...
... 37. Know the biomedical significance of plasmids and some of the capabilities they code for 38. Be able to describe the different types of mutations and their effects (i.e. missense mutation, nonsense mutatio ...
Amino Acid Changes in the HIV-1 gp41 Membrane Proximal Region
... interact with target cell surface CD4 and a co-receptor to mediate viral entry (Berger, 1997; Wyatt and Sodroski, 1998). The membrane-proximal external region (MPER) is a highly conserved 23 amino acid stretch that is located in the heptad region-2 (HR-2) at the base of gp41, proximal to the transme ...
... interact with target cell surface CD4 and a co-receptor to mediate viral entry (Berger, 1997; Wyatt and Sodroski, 1998). The membrane-proximal external region (MPER) is a highly conserved 23 amino acid stretch that is located in the heptad region-2 (HR-2) at the base of gp41, proximal to the transme ...
M.Sc. (Microbiology) - Distance Learning Programs
... and monolayer cell cultures; cell strains, cell lines. Assay of viruses- physical and chemical methods (protein, nucleic acid, radioactive tracers, and electron microscopy). Unit-III Bacterial viruses: bacteriophage structural organization, life cycle, one step growth curve, transcription, DNA repli ...
... and monolayer cell cultures; cell strains, cell lines. Assay of viruses- physical and chemical methods (protein, nucleic acid, radioactive tracers, and electron microscopy). Unit-III Bacterial viruses: bacteriophage structural organization, life cycle, one step growth curve, transcription, DNA repli ...
Medical University of Lodz Division of Studies in English (6MD
... reservoir of the pathogen, the modes of its transmission, the source of infection), the presence of bacteria in the human body (resident and transient bacterial flora, the carriage of pathogenic bacteria), the influence of physical and chemical factors on bacteria; the student knows the methods of t ...
... reservoir of the pathogen, the modes of its transmission, the source of infection), the presence of bacteria in the human body (resident and transient bacterial flora, the carriage of pathogenic bacteria), the influence of physical and chemical factors on bacteria; the student knows the methods of t ...
Introduction to viruses
A virus is a biological agent that reproduces inside the cells of living hosts. When infected by a virus, a host cell is forced to produce many thousands of identical copies of the original virus, at an extraordinary rate. Unlike most living things, viruses do not have cells that divide; new viruses are assembled in the infected host cell. But unlike still simpler infectious agents, viruses contain genes, which gives them the ability to mutate and evolve. Over 5,000 species of viruses have been discovered.The origins of viruses are unclear: some may have evolved from plasmids—pieces of DNA that can move between cells—while others may have evolved from bacteria. A virus consists of two or three parts: genes, made from either DNA or RNA, long molecules that carry genetic information; a protein coat that protects the genes; and in some viruses, an envelope of fat that surrounds and protects them when they are not contained within a host cell. Viruses vary in shape from the simple helical and icosahedral to more complex structures. Viruses range in size from 20 to 300 nanometres; it would take 30,000 to 750,000 of them, side by side, to stretch to 1 centimetre (0.39 in).Viruses spread in many ways. Just as many viruses are very specific as to which host species or tissue they attack, each species of virus relies on a particular method for propagation. Plant viruses are often spread from plant to plant by insects and other organisms, known as vectors. Some viruses of animals, including humans, are spread by exposure to infected bodily fluids. Viruses such as influenza are spread through the air by droplets of moisture when people cough or sneeze. Viruses such as norovirus are transmitted by the faecal–oral route, which involves the contamination of hands, food and water. Rotavirus is often spread by direct contact with infected children. The human immunodeficiency virus, HIV, is transmitted by bodily fluids transferred during sex. Others, such as the Dengue virus, are spread by blood-sucking insects.Viral infections can cause disease in humans, animals and even plants. However, they are usually eliminated by the immune system, conferring lifetime immunity to the host for that virus. Antibiotics have no effect on viruses, but antiviral drugs have been developed to treat life-threatening infections. Vaccines that produce lifelong immunity can prevent some viral infections.