PowerPoint Presentation - Extremophiles
... Vector Control = vaccinations of some vectors, and extermination of others ...
... Vector Control = vaccinations of some vectors, and extermination of others ...
Viruses
... • Single stranded naked RNA virus with icosahedral symmetry • Unlike rhinoviruses, they are stable in acid pH • capsid has 60 copies each of 4 proteins, VP1, VP2, VP3 and VP4 arranged with icosahedral symmetry around a positive sense genome. At least 71 serotypes are known: divided into 5 ...
... • Single stranded naked RNA virus with icosahedral symmetry • Unlike rhinoviruses, they are stable in acid pH • capsid has 60 copies each of 4 proteins, VP1, VP2, VP3 and VP4 arranged with icosahedral symmetry around a positive sense genome. At least 71 serotypes are known: divided into 5 ...
UNIT 8: MICROBIOLOGY STUDY Guide with Test Objectives
... 1. Define microbiology. The study of microbes (bacteria, archaea, viruses, unicellular eukaryotes) 2. Compare and contrast prokaryotic cells and eukaryotic cells. a. Eukaryotic cells are larger and more advanced. They have distinct, membrane-bounded organelles, including the nucleus that contains DN ...
... 1. Define microbiology. The study of microbes (bacteria, archaea, viruses, unicellular eukaryotes) 2. Compare and contrast prokaryotic cells and eukaryotic cells. a. Eukaryotic cells are larger and more advanced. They have distinct, membrane-bounded organelles, including the nucleus that contains DN ...
Chapter 10 Active Lecture Questions
... The names are standardized. Each name consists of a genus and specific epithet. e. It was first designed by Linnaeus. ...
... The names are standardized. Each name consists of a genus and specific epithet. e. It was first designed by Linnaeus. ...
bacteria and fungi Reproduction
... RESPIRATION. When cells reach above optimum size they divide. Viruses don’t grow - no chemical processes of own. “growth” can refer to individual organism or growth of a population. ...
... RESPIRATION. When cells reach above optimum size they divide. Viruses don’t grow - no chemical processes of own. “growth” can refer to individual organism or growth of a population. ...
Paracytology and virology 2nd stage Germs: Viruses, Bacteria, and
... Viral pathogenesis refers to the interaction of viral and host factors that leads to disease production. A virus is pathogenic for a particular host if it can infect and cause signs of disease in that host. A strain of a certain virus is more virulent than another strain if it commonly produces more ...
... Viral pathogenesis refers to the interaction of viral and host factors that leads to disease production. A virus is pathogenic for a particular host if it can infect and cause signs of disease in that host. A strain of a certain virus is more virulent than another strain if it commonly produces more ...
HIV Coloring
... In general, viruses have very small genomes which means that they don’t have many genes. Also, their genetic information encodes few of the proteins needed for reproduction. For this reason, most viruses must use the proteins provided by their host in order to reproduce (make more viruses). In a way ...
... In general, viruses have very small genomes which means that they don’t have many genes. Also, their genetic information encodes few of the proteins needed for reproduction. For this reason, most viruses must use the proteins provided by their host in order to reproduce (make more viruses). In a way ...
viruses
... you may have had yourself—the common cold, influenza (flu), chicken pox, and measles. Viruses can also cause more serious diseases such as dengue fever (a disease spread by mosquitos characterized by high fever), encephalitis (a disease characterized by swelling of the brain), small pox, and AIDS. Som ...
... you may have had yourself—the common cold, influenza (flu), chicken pox, and measles. Viruses can also cause more serious diseases such as dengue fever (a disease spread by mosquitos characterized by high fever), encephalitis (a disease characterized by swelling of the brain), small pox, and AIDS. Som ...
MICROBIOLOGY BIOTECHNOLOGY - Bio-Guru
... Lysogenic Cycle – temperate viruses - Temperate phages, like phage lambda, use both lytic and lysogenic cycles. During a lytic cycle, the viral genes immediately turn the host cell into a virus-producing factory, and the cell soon lyses and releases its viral products. - During the lysogenic cycle, ...
... Lysogenic Cycle – temperate viruses - Temperate phages, like phage lambda, use both lytic and lysogenic cycles. During a lytic cycle, the viral genes immediately turn the host cell into a virus-producing factory, and the cell soon lyses and releases its viral products. - During the lysogenic cycle, ...
Bacteria and Viruses Notes
... 1. In the 1980s the announcement of the eradication of _________________ had occurred because it only infected _______________ and doctors were able to quarantine people and get rid of the virus. However, the flu is difficult to eradicate because it is _________ species specific. ...
... 1. In the 1980s the announcement of the eradication of _________________ had occurred because it only infected _______________ and doctors were able to quarantine people and get rid of the virus. However, the flu is difficult to eradicate because it is _________ species specific. ...
Chapter 12 Section 12_1 DNA
... Molecular Cause of Transformation • In 1944, a group of scientists led by Oswald Avery wanted to learn which ...
... Molecular Cause of Transformation • In 1944, a group of scientists led by Oswald Avery wanted to learn which ...
HIV Infection Worksheet
... enzyme that is unique to viruses. Color the reverse transcriptase yellow. Because the HIV virus uses the reverse transcriptase and RNA method, it is known as a retrovirus. The Flu is another example of a retrovirus. Because it is single stranded genetic material, it develops mutations more frequentl ...
... enzyme that is unique to viruses. Color the reverse transcriptase yellow. Because the HIV virus uses the reverse transcriptase and RNA method, it is known as a retrovirus. The Flu is another example of a retrovirus. Because it is single stranded genetic material, it develops mutations more frequentl ...
Viruses
... infection. The virus that causes the common cold infects cells in the respiratory tract. When attacked, these cells release mucus, which can result in a runny nose or cough. In this case, the symptoms are due more to the immune system response than to the actions of the virus itself! The Immune Syst ...
... infection. The virus that causes the common cold infects cells in the respiratory tract. When attacked, these cells release mucus, which can result in a runny nose or cough. In this case, the symptoms are due more to the immune system response than to the actions of the virus itself! The Immune Syst ...
الشريحة 1
... •Detection of Antigen - a rapid diagnosis can be made by the detection of influenza antigen from nasopharyngeal aspirates and throat washings by IFT and ELISA •Virus Isolation - virus may be readily isolated from nasopharyngeal aspirates and throat swabs by egg inoculation and ...
... •Detection of Antigen - a rapid diagnosis can be made by the detection of influenza antigen from nasopharyngeal aspirates and throat washings by IFT and ELISA •Virus Isolation - virus may be readily isolated from nasopharyngeal aspirates and throat swabs by egg inoculation and ...
VIROLOGY - MCB 5505 VIRUS FAMILY: RHABDOVIRIDAE I
... The rabies virus was first shown infectious in 1808. Pasteur (in the (1880'S) succeeded in isolating an attenuated virus which he used to treat patients. Replication of the virus occurs locally in muscle and connective tissue with no symptoms, but eventually infects the peripheral nerves. It travels ...
... The rabies virus was first shown infectious in 1808. Pasteur (in the (1880'S) succeeded in isolating an attenuated virus which he used to treat patients. Replication of the virus occurs locally in muscle and connective tissue with no symptoms, but eventually infects the peripheral nerves. It travels ...
Lesson Plan: Viruses and Evolution
... pathogens, which are disease--causing agents. Ask students, What are some other kinds of pathogens? Students should recall that some bacteria, protozoans, and fungi are pathogens. Ask, What do these three kinds of pathogens have in common? Students should understand that all are living organisms an ...
... pathogens, which are disease--causing agents. Ask students, What are some other kinds of pathogens? Students should recall that some bacteria, protozoans, and fungi are pathogens. Ask, What do these three kinds of pathogens have in common? Students should understand that all are living organisms an ...
Trying Not to Sneeze
... 2. HIV - virus, blood,sexual contact, breastmilk 3. Strep - bacteria, moisture secretions ...
... 2. HIV - virus, blood,sexual contact, breastmilk 3. Strep - bacteria, moisture secretions ...
Microbiology
... One of each of the four dideoxynucleotides These stop the addition of nucleotides to the chain; therefore, they cause the chain to stop when they are incorporated into a new strand This fragment (and all of the others) can then be ...
... One of each of the four dideoxynucleotides These stop the addition of nucleotides to the chain; therefore, they cause the chain to stop when they are incorporated into a new strand This fragment (and all of the others) can then be ...
Viruses
... hereditary material surrounded by a protein coat- protective coat is called the capsid Very very small! Does not grow Does not respond Does not eat Only reproduces Can reproduce only inside a living cell (host cell) ...
... hereditary material surrounded by a protein coat- protective coat is called the capsid Very very small! Does not grow Does not respond Does not eat Only reproduces Can reproduce only inside a living cell (host cell) ...
Modules10-17to10-22
... fight them off with our immune system and how quickly our cells go through mitosis is a factor in how and IF we recover 100% from a viral infection. Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
... fight them off with our immune system and how quickly our cells go through mitosis is a factor in how and IF we recover 100% from a viral infection. Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Ebola strain variation in outbreaks
... The Ebola virus (EBOV) is one the most lethal pathogens with a structure similar to a filovirus. Its length varies from 800-1000 nm long and roughly 288 amino acids long. The amount of attenuations is what makes this particular virus so interesting, and deadly. Virons are generally tubular and can a ...
... The Ebola virus (EBOV) is one the most lethal pathogens with a structure similar to a filovirus. Its length varies from 800-1000 nm long and roughly 288 amino acids long. The amount of attenuations is what makes this particular virus so interesting, and deadly. Virons are generally tubular and can a ...
Chapter 6 An Introduction to Viruses
... Viral damage • Some animal viruses enter the host cell and permanently alter its genetic material resulting in cancer – transformation of the cell • Transformed cells have an increased rate of growth, alterations in chromosomes, and the capacity to divide for indefinite time periods resulting in tu ...
... Viral damage • Some animal viruses enter the host cell and permanently alter its genetic material resulting in cancer – transformation of the cell • Transformed cells have an increased rate of growth, alterations in chromosomes, and the capacity to divide for indefinite time periods resulting in tu ...
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.