Module 9 – The Viruses
... and lyse the cell at the end of its life cycle.After attachment of tail fibre to host, genetic materials are injected inside the host. The time period between the entry of genetic material inside the host and release of mature phage after end of life cycle is termed as eclipse period. Synthesis of p ...
... and lyse the cell at the end of its life cycle.After attachment of tail fibre to host, genetic materials are injected inside the host. The time period between the entry of genetic material inside the host and release of mature phage after end of life cycle is termed as eclipse period. Synthesis of p ...
1 Pathogens and the Immune System “The War Begins” The Enemy
... Immunity to smallpox can be induced much more safely than by variolation. - Jenner is often considered the “father of immunology” - he received many awards and worldwide recognition but did attempt to profit from it ...
... Immunity to smallpox can be induced much more safely than by variolation. - Jenner is often considered the “father of immunology” - he received many awards and worldwide recognition but did attempt to profit from it ...
Common Antiviral Agents Common Antiviral Agents
... N-acetyl-neuraminic acid, NANA). An antibody will block the epitope. Without immunity, epitope binds with receptor and the virus will subsequently enter the cell. The 16 different H structures all have a similar polypeptide composition, but differ in amino acid composition at certain sites. Only mol ...
... N-acetyl-neuraminic acid, NANA). An antibody will block the epitope. Without immunity, epitope binds with receptor and the virus will subsequently enter the cell. The 16 different H structures all have a similar polypeptide composition, but differ in amino acid composition at certain sites. Only mol ...
Control of Viral Infections and Diseases
... lymphocytes. Interferons tend to exhibit species specificity (mouse cell interferon protects mouse cells to a much greater extent than human cells) and are inhibitory to numerous viruses. For many years it was not possible to obtain sufficient quantities of interferons to conduct major studies. Howe ...
... lymphocytes. Interferons tend to exhibit species specificity (mouse cell interferon protects mouse cells to a much greater extent than human cells) and are inhibitory to numerous viruses. For many years it was not possible to obtain sufficient quantities of interferons to conduct major studies. Howe ...
The Threat of Marek`s Disease Virus Is Expanding
... Apart from genome-wide QTL scans, there are other more precise methods for identifying candidate disease-resistance genes. For instance, we are using DNA microarrays to compare patterns of gene expression under various conditions and thus to develop a picture of the many genes associated with those ...
... Apart from genome-wide QTL scans, there are other more precise methods for identifying candidate disease-resistance genes. For instance, we are using DNA microarrays to compare patterns of gene expression under various conditions and thus to develop a picture of the many genes associated with those ...
Viral reproductive cycle
... 4 New copies of viral genome RNA are made using complementary RNA strands as templates. ...
... 4 New copies of viral genome RNA are made using complementary RNA strands as templates. ...
Respiratory syndrom
... The strains used are reviewed by the WHO each year. The vaccine should be given to debilitated and elderly individuals who are at risk of severe influenza infection. Amantidine can be used as an prophylaxis for those who are allergic to the vaccine or during the period before the vaccine takes effec ...
... The strains used are reviewed by the WHO each year. The vaccine should be given to debilitated and elderly individuals who are at risk of severe influenza infection. Amantidine can be used as an prophylaxis for those who are allergic to the vaccine or during the period before the vaccine takes effec ...
29_viruses
... • The first anti-retroviral drug • Stops DNA synthesis because it does not have a 3’OH • Originally developed as an anti cancer drug, but too many side effects ...
... • The first anti-retroviral drug • Stops DNA synthesis because it does not have a 3’OH • Originally developed as an anti cancer drug, but too many side effects ...
Biology 20 Diversity of Life PowerPoint part 2.pps
... Viruses are infectious particles made only of a strand of DNA or RNA surrounded by protein coat. Viruses are small or very small (50-200 nm) and cannot be seen with a light microscope (you need an electron microscope). Some scientists consider viruses as complex chemicals ...
... Viruses are infectious particles made only of a strand of DNA or RNA surrounded by protein coat. Viruses are small or very small (50-200 nm) and cannot be seen with a light microscope (you need an electron microscope). Some scientists consider viruses as complex chemicals ...
- ISpatula
... They also contain the enzyme reverse transcriptase, which uses the viral RNA to form a complementary strand of DNA, which is then replicated to form a dsDNA (such as HIV virus and human leukemia virus(which is a type of cancer: cancer means abnormal growth of cells; it can be caused by viruses when ...
... They also contain the enzyme reverse transcriptase, which uses the viral RNA to form a complementary strand of DNA, which is then replicated to form a dsDNA (such as HIV virus and human leukemia virus(which is a type of cancer: cancer means abnormal growth of cells; it can be caused by viruses when ...
RLrM3wFG_Microbe_PowerPoint
... Viruses are not classified into a kingdom because…. They are not alive until they find a suitable host cell. On their own they….. can’t make their own food can’t reproduce on their own can’t undergo metabolic processes ...
... Viruses are not classified into a kingdom because…. They are not alive until they find a suitable host cell. On their own they….. can’t make their own food can’t reproduce on their own can’t undergo metabolic processes ...
Some homework to help you prepare for your event:
... 3. Bacteria can be further subdivided into three basic groups, using differential staining approaches (hint: Gram staining). What are these three different groups? What different cellular morphologies might you see looking at stained microscopic smears of a few bacterial representatives? 4. Do all ...
... 3. Bacteria can be further subdivided into three basic groups, using differential staining approaches (hint: Gram staining). What are these three different groups? What different cellular morphologies might you see looking at stained microscopic smears of a few bacterial representatives? 4. Do all ...
Test one Part one Selection: DIRECTIONS: Each question below
... Gramnegative rods, oxidase-positive. The most likely identity of this organism is a. Campylobacter jejuni b. Vibrio parahaemolyticus c. Haemophilus influenzae d. Helicobacter pylori e. Campylobacter fetus 12. An inhibitor was designed to block a biologic function in H. influenzae. If the goal of the ...
... Gramnegative rods, oxidase-positive. The most likely identity of this organism is a. Campylobacter jejuni b. Vibrio parahaemolyticus c. Haemophilus influenzae d. Helicobacter pylori e. Campylobacter fetus 12. An inhibitor was designed to block a biologic function in H. influenzae. If the goal of the ...
Viruses of Bacteria - Morgan Community College
... Complex Two types of virion Naked – without envelope Enveloped – surrounded by lipid membrane ...
... Complex Two types of virion Naked – without envelope Enveloped – surrounded by lipid membrane ...
When is LB used?
... Microbiology Susceptibility (MS) Domain • The MS domain is designed to store any findings related to the organisms found and submitted in MB. This will usually consist of susceptibility testing results, but can also be other organism-related findings such as extent of growth of an organism. • All c ...
... Microbiology Susceptibility (MS) Domain • The MS domain is designed to store any findings related to the organisms found and submitted in MB. This will usually consist of susceptibility testing results, but can also be other organism-related findings such as extent of growth of an organism. • All c ...
The Development and Optimization of a Sensitive and Specific
... taxonomy and to distinguish the Lyme disease agents from related species througuh PCRRestriction Fragment Length Polymorphism (PCR-RFLP) with 580 bp fragments. The researchers concluded that B. lonestari bacteria are also related to the New World tick-borne relapsing fever Borreliae. The difference ...
... taxonomy and to distinguish the Lyme disease agents from related species througuh PCRRestriction Fragment Length Polymorphism (PCR-RFLP) with 580 bp fragments. The researchers concluded that B. lonestari bacteria are also related to the New World tick-borne relapsing fever Borreliae. The difference ...
ARBORICULTURE
... primarily of a nucleic acid, which may be an RNA (ribonucleic acid) or a DNA (desoxyribonucleic acid), and a protein. Of the two substances, the nucleic acid is really the active substance responsible for what the virus does, while the protein serves primarily as a protective coat for the nucleic ac ...
... primarily of a nucleic acid, which may be an RNA (ribonucleic acid) or a DNA (desoxyribonucleic acid), and a protein. Of the two substances, the nucleic acid is really the active substance responsible for what the virus does, while the protein serves primarily as a protective coat for the nucleic ac ...
Immunology, Serolog..
... dichotomous keys always offer two choices for each step, each of which describes key characteristics of a particular organism or group of organisms. ...
... dichotomous keys always offer two choices for each step, each of which describes key characteristics of a particular organism or group of organisms. ...
Growth and Cultivation of micro
... • The method gravimeter uses ordinary balances after removal of the water content of the sample. Given a sample size of one ml and assuming that an average dry bacterium is weighing 10-12 g and that a ordinary balance can detect 10-4 g this means that you must have >108 bacteria per ml in the sample ...
... • The method gravimeter uses ordinary balances after removal of the water content of the sample. Given a sample size of one ml and assuming that an average dry bacterium is weighing 10-12 g and that a ordinary balance can detect 10-4 g this means that you must have >108 bacteria per ml in the sample ...
Virus or Bacteria... which needs the iron?
... shellfish or walking barefoot over contaminated beaches. V. vulnificus can become highly virulent in an iron rich environment. Persons with excessive body iron who become infected with V.vulnificus can die within hours due of sepsis. Sepsis is the spread of an infection from its initial site to the ...
... shellfish or walking barefoot over contaminated beaches. V. vulnificus can become highly virulent in an iron rich environment. Persons with excessive body iron who become infected with V.vulnificus can die within hours due of sepsis. Sepsis is the spread of an infection from its initial site to the ...
Giant viruses!
... addition to their extremely small size, most viruses studied over the years also exhibited minimal genomes and gene contents, almost entirely relying on cell-encoded functions to multiply, as expected from absolute intracellular parasites. Unexpectedly, the last ten years have seen the discovery of ...
... addition to their extremely small size, most viruses studied over the years also exhibited minimal genomes and gene contents, almost entirely relying on cell-encoded functions to multiply, as expected from absolute intracellular parasites. Unexpectedly, the last ten years have seen the discovery of ...
Tobacco Mosaic Virus (TMV)
... plant cell, the protein coat falls away and nucleic acid portion directs the plant cell to produce more virus nucleic acid and virus protein, disrupting the normal activity of the cell. TMV can multiply only inside a living cell but it can survive in a dormant state in dead tissue, retaining its abi ...
... plant cell, the protein coat falls away and nucleic acid portion directs the plant cell to produce more virus nucleic acid and virus protein, disrupting the normal activity of the cell. TMV can multiply only inside a living cell but it can survive in a dormant state in dead tissue, retaining its abi ...
Active Immunisation and Vaccination
... • Some organisms are better at it than others. – The influenza viruses are a notorious example; they change so much that people must design a new vaccine every year to inoculate people against the flu. – malaria – antigenic variation occurs within a population – Trypanosomiasis - Trypanosomes are in ...
... • Some organisms are better at it than others. – The influenza viruses are a notorious example; they change so much that people must design a new vaccine every year to inoculate people against the flu. – malaria – antigenic variation occurs within a population – Trypanosomiasis - Trypanosomes are in ...
Name - Lisle CUSD 202
... nanometers) long. Viruses are about a thousand times smaller than bacteria, and bacteria are much smaller than most human cells. Viruses are so small that most cannot be seen with a light microscope, but must be observed with an electron microscope. A virus particle, or virion, consists of the follo ...
... nanometers) long. Viruses are about a thousand times smaller than bacteria, and bacteria are much smaller than most human cells. Viruses are so small that most cannot be seen with a light microscope, but must be observed with an electron microscope. A virus particle, or virion, consists of the follo ...
Virus and Bacteria Unit Study Guide
... List the characteristics of life that viruses do and do not have. Identify common viruses. Label a bacteriophage virus. Compare the size of viruses, prokaryotic cells and eukaryotic cells. Outline the process of both the lytic and lysogenic cycle, understanding how the two are connected. Identify ex ...
... List the characteristics of life that viruses do and do not have. Identify common viruses. Label a bacteriophage virus. Compare the size of viruses, prokaryotic cells and eukaryotic cells. Outline the process of both the lytic and lysogenic cycle, understanding how the two are connected. Identify ex ...
Virus quantification
Virus quantification involves counting the number of viruses in a specific volume to determine the virus concentration. It is utilized in both research and development (R&D) in commercial and academic laboratories as well as production situations where the quantity of virus at various steps is an important variable. For example, the production of viral vaccines, recombinant proteins using viral vectors and viral antigens all require virus quantification to continually adapt and monitor the process in order to optimize production yields and respond to ever changing demands and applications. Examples of specific instances where known viruses need to be quantified include clone screening, multiplicity of infection (MOI) optimization and adaptation of methods to cell culture. This page discusses various techniques currently used to quantify viruses in liquid samples. These methods are separated into two categories, traditional vs. modern methods. Traditional methods are industry-standard methods that have been used for decades but are generally slow and labor-intensive. Modern methods are relatively new commercially available products and kits that greatly reduce quantification time. This is not meant to be an exhaustive review of all potential methods, but rather a representative cross-section of traditional methods and new, commercially available methods. While other published methods may exist for virus quantification, non-commercial methods are not discussed here.