Chapter 13 Characterizing Viruses, Viroids, and Prions
... – Some have a phospholipid envelope which surrounds the capsid (enveloped) – Outermost layer provides protection and recognition sites for host cells ...
... – Some have a phospholipid envelope which surrounds the capsid (enveloped) – Outermost layer provides protection and recognition sites for host cells ...
18.1 Studying Viruses and Prokaryotes
... Figure: Although eukaryotic and prokaryotic cells can be microscopic, they are large in comparison to viruses, viroids, and prions. ...
... Figure: Although eukaryotic and prokaryotic cells can be microscopic, they are large in comparison to viruses, viroids, and prions. ...
VirusEvoution2005
... • Viruses origins are unknown • Theories of virus origin: – Regressive evolution: viruses degenerated from previously independent life forms, lost many functions required by cellular organisms – Cellular origins: viruses assembled from cellular components into independent entities capable of moving ...
... • Viruses origins are unknown • Theories of virus origin: – Regressive evolution: viruses degenerated from previously independent life forms, lost many functions required by cellular organisms – Cellular origins: viruses assembled from cellular components into independent entities capable of moving ...
幻灯片 1 - TUST
... 4. More variety is found in the genomes of viruses than in those of procaryotes and eucaryotes; they may be either single-stranded or double-stranded DNA or RNA. The nucleic acid strands can be linear, closed circle, or able to assume either shape. 5. Viruses are classified on the basis of their nuc ...
... 4. More variety is found in the genomes of viruses than in those of procaryotes and eucaryotes; they may be either single-stranded or double-stranded DNA or RNA. The nucleic acid strands can be linear, closed circle, or able to assume either shape. 5. Viruses are classified on the basis of their nuc ...
Ecology of Bacteria and Virus Cycles Worksheet
... bacteria use (3) _________________________ gas directly and convert this gas into compounds that plants can use. This process is called (4) _________________________ . Some bacteria called (5) _________________________ live in and on the human body. Escherichia coli live (6) ________________________ ...
... bacteria use (3) _________________________ gas directly and convert this gas into compounds that plants can use. This process is called (4) _________________________ . Some bacteria called (5) _________________________ live in and on the human body. Escherichia coli live (6) ________________________ ...
Student Worksheets
... 1. What was Beijerinck’s major insight regarding how to identify viruses? a. A filter can be used to separate viruses from bacteria because of their different sizes. b. Bacteria are always smaller than viruses. c. Only bacteria infect plants. d. DNA can be used to identify the differences between vir ...
... 1. What was Beijerinck’s major insight regarding how to identify viruses? a. A filter can be used to separate viruses from bacteria because of their different sizes. b. Bacteria are always smaller than viruses. c. Only bacteria infect plants. d. DNA can be used to identify the differences between vir ...
SNC4M Unit 2 – Pathogens and Disease Viruses – an overview
... German measles, hepatitis, influenza, leukemia, liver cancer, measles, mononucleosis, mumps, oral herpes, polio, rabies, shingles, smallpox, virus hemorrhagic fever, warts , yellow fever . Basic structure of viruses: All viruses contain either RNA or DNA surrounded by a protective protein coat, whic ...
... German measles, hepatitis, influenza, leukemia, liver cancer, measles, mononucleosis, mumps, oral herpes, polio, rabies, shingles, smallpox, virus hemorrhagic fever, warts , yellow fever . Basic structure of viruses: All viruses contain either RNA or DNA surrounded by a protective protein coat, whic ...
MS Word Format
... Viral genomes consist of DNA or RNA and tend to be very small due to the small physical size of viruses. Some have less than 10 genes and have just the information needed to reproduce. Because of their simplicity and the methods they use to reproduce, errors are made easily. Viruses tend to evolve a ...
... Viral genomes consist of DNA or RNA and tend to be very small due to the small physical size of viruses. Some have less than 10 genes and have just the information needed to reproduce. Because of their simplicity and the methods they use to reproduce, errors are made easily. Viruses tend to evolve a ...
In Vitro Selection of Metabolite-Dependent Self-Cleaving
... Similar to enzymes, many RNAs have catalytic properties, such as peptide bond formation and self-cleaving. Many self-cleaving ribozymes have already been found in viral, bacterial, and mammalian genomes. However, only the glmS ribozyme, found in Gram-positive bacteria, has been found to self-cleave ...
... Similar to enzymes, many RNAs have catalytic properties, such as peptide bond formation and self-cleaving. Many self-cleaving ribozymes have already been found in viral, bacterial, and mammalian genomes. However, only the glmS ribozyme, found in Gram-positive bacteria, has been found to self-cleave ...
The Discovery of Viruses
... reproduce asexually. One method is when a mutation in their _________ occurs and the mutation is passed on to a daughter cell. Another method is through _____________ where a hollow bridge forms between two cells and a ___________ (ring of DNA) is transferred. The transfer of genetic material ______ ...
... reproduce asexually. One method is when a mutation in their _________ occurs and the mutation is passed on to a daughter cell. Another method is through _____________ where a hollow bridge forms between two cells and a ___________ (ring of DNA) is transferred. The transfer of genetic material ______ ...
File
... 36) FEVER, CHILLS, NAUSEA, NERVE INFLAMATION, SEVERE HEMMORHAGE ARE THE SIDE EFFECTS OF AMPHOTERICIN B 37) THE ACTIVITY OF THE THYMUS GLAND IS RELATIVELY SMALL IN CHILDHOOD IN COMPARISON TO MIDDLE AGE. THIS IS THE MAIN REASON OF A GREATER VULNERABILITY OF CHILDREN TO MYCOSES 38) GRISEOFULVIN TREATS ...
... 36) FEVER, CHILLS, NAUSEA, NERVE INFLAMATION, SEVERE HEMMORHAGE ARE THE SIDE EFFECTS OF AMPHOTERICIN B 37) THE ACTIVITY OF THE THYMUS GLAND IS RELATIVELY SMALL IN CHILDHOOD IN COMPARISON TO MIDDLE AGE. THIS IS THE MAIN REASON OF A GREATER VULNERABILITY OF CHILDREN TO MYCOSES 38) GRISEOFULVIN TREATS ...
Lecture 5 (Ch6) - Viruses Virus Characteristics Viral Host Range
... Viral nucleic acid • Viruses contain either DNA or RNA • Possess only the genes to invade and regulate the metabolic activity of host cells – Examples: Hepatitis B (DNA)(4 genes) Herpesviruses (DNA) (100 genes) Rotavirus (dsRNA) Coronavirus, SARs (ssRNA) ...
... Viral nucleic acid • Viruses contain either DNA or RNA • Possess only the genes to invade and regulate the metabolic activity of host cells – Examples: Hepatitis B (DNA)(4 genes) Herpesviruses (DNA) (100 genes) Rotavirus (dsRNA) Coronavirus, SARs (ssRNA) ...
The Viruses Part I - Université d`Ottawa
... RNA viruses must encode a viral polymerase Host cells cannot read RNA to make more RNA dsRNA and (+)ssRNA genome can be translated (-)ssRNA and retrovirus genomes must be replicated to be translated –Only (+)ssRNA can be used as mRNA ...
... RNA viruses must encode a viral polymerase Host cells cannot read RNA to make more RNA dsRNA and (+)ssRNA genome can be translated (-)ssRNA and retrovirus genomes must be replicated to be translated –Only (+)ssRNA can be used as mRNA ...
All information is taken from open sources, mostly wikipedia Flu
... Change of surface antigenes of virus to make it invisible to vaccines (link) ...
... Change of surface antigenes of virus to make it invisible to vaccines (link) ...
ebola virus - Advanced Decon Technologies
... Ebola virus (EBOV) is the virus responsible for Ebola virus disease, a type of hemorrhagic fever, a highly contagious and very severe infectious disease that affects both animals and humans. The ...
... Ebola virus (EBOV) is the virus responsible for Ebola virus disease, a type of hemorrhagic fever, a highly contagious and very severe infectious disease that affects both animals and humans. The ...
Poxvirus - rci.rutgers.edu
... requires host factors late in infection process • Particles contain enzymes associated with replication, transcription, protein and nucleic acid modification • One of the few DNA viruses that make their own RNA polymerase; therefore, promoter specificity achieved • Substantial cross hybridization an ...
... requires host factors late in infection process • Particles contain enzymes associated with replication, transcription, protein and nucleic acid modification • One of the few DNA viruses that make their own RNA polymerase; therefore, promoter specificity achieved • Substantial cross hybridization an ...
Treatment of Viruses
... Origin of Viruses 2. Run-away RNA: Viruses arose from host RNA or DNA that gained a self-replicative, but parasitic existence and acquired the ability to replicate independently of their host ...
... Origin of Viruses 2. Run-away RNA: Viruses arose from host RNA or DNA that gained a self-replicative, but parasitic existence and acquired the ability to replicate independently of their host ...
Part I
... Important Human Viruses (Continued) RNA Virus Families 4. Retroviruses: Unique family of enveloped viruses. Have the ability to convert their RNA genetic material into DNA through an enzyme called reverse transcriptase. Viral DNA is integrated into host chromosome (provirus) where it can remain dor ...
... Important Human Viruses (Continued) RNA Virus Families 4. Retroviruses: Unique family of enveloped viruses. Have the ability to convert their RNA genetic material into DNA through an enzyme called reverse transcriptase. Viral DNA is integrated into host chromosome (provirus) where it can remain dor ...
src
... species indicating that the cellular genomes of these birds contain a DNA sequence that is closely related to src. ...
... species indicating that the cellular genomes of these birds contain a DNA sequence that is closely related to src. ...
Virus Notes
... E. New viruses form inside of the host cell. F. New viruses are released as the host cell bursts open and is destroyed. ...
... E. New viruses form inside of the host cell. F. New viruses are released as the host cell bursts open and is destroyed. ...
Hearing for those who have lost it”
... through damage (constant exposure to high decibels) or disease. • Injection of a virus containing a gene that should trigger the regrowth of sensory receptors in the ear. – The virus has been stripped of its DNA, which has been replaced with a gene that will hopefully trigger sensory receptor regrow ...
... through damage (constant exposure to high decibels) or disease. • Injection of a virus containing a gene that should trigger the regrowth of sensory receptors in the ear. – The virus has been stripped of its DNA, which has been replaced with a gene that will hopefully trigger sensory receptor regrow ...
Molecular Genetics of Viruses
... Molecular Genetics of Viruses • Specie specific and cell specific. • Bacteriophage (phage) – Viruses that attack only bacteria. ...
... Molecular Genetics of Viruses • Specie specific and cell specific. • Bacteriophage (phage) – Viruses that attack only bacteria. ...
18.1 Studying Viruses and Prokaryotes
... The host bacterium breaks apart, or lyses. Bacteriophages are able to infect new host cells. ...
... The host bacterium breaks apart, or lyses. Bacteriophages are able to infect new host cells. ...
DNA virus
A DNA virus is a virus that has DNA as its genetic material and replicates using a DNA-dependent DNA polymerase. The nucleic acid is usually double-stranded DNA (dsDNA) but may also be single-stranded DNA (ssDNA). DNA viruses belong to either Group I or Group II of the Baltimore classification system for viruses. Single-stranded DNA is usually expanded to double-stranded in infected cells. Although Group VII viruses such as hepatitis B contain a DNA genome, they are not considered DNA viruses according to the Baltimore classification, but rather reverse transcribing viruses because they replicate through an RNA intermediate. Notable diseases like smallpox, herpes, and chickenpox are caused by such DNA viruses.