Viruses
... envelopes, membranes cloaking their capsids. • These envelopes are derived from the membrane of the host cell. ...
... envelopes, membranes cloaking their capsids. • These envelopes are derived from the membrane of the host cell. ...
Plant Viruses - rci.rutgers.edu
... Most all have protein coat* May of may not have lipid envelope May have broad or narrow host range Replication involves eclipse (breaking apart of virus particles) and reassembly • Use host factors for to complete replication cycle ...
... Most all have protein coat* May of may not have lipid envelope May have broad or narrow host range Replication involves eclipse (breaking apart of virus particles) and reassembly • Use host factors for to complete replication cycle ...
VIRUSES Honors Biology
... Types of Virus Vaccines Inactivated viruses – do not replicate in a host system; Attenuated viruses – genetically altered so they are incapable of causing disease under normal circumstances; Protection is greater and lasts longer with vaccine from attenuated viruses; ...
... Types of Virus Vaccines Inactivated viruses – do not replicate in a host system; Attenuated viruses – genetically altered so they are incapable of causing disease under normal circumstances; Protection is greater and lasts longer with vaccine from attenuated viruses; ...
Name: Period ______ HOW HIV INFECTS CELLS In general
... In general, viruses have very small genomes which means they can encode a very limited number of their own proteins. For this reason, most viruses must use the proteins provided by their host in order to reproduce (make more viruses). In a way, viruses are parasitic, they bring very little with them ...
... In general, viruses have very small genomes which means they can encode a very limited number of their own proteins. For this reason, most viruses must use the proteins provided by their host in order to reproduce (make more viruses). In a way, viruses are parasitic, they bring very little with them ...
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 ...
PHA 321 - Biosciences II
... A) Gram-positive bacteria B) Gram-negative bacteria C) bacteriophages 6. Interferons function to make cells A) resistant to viral infection. B) lyse when exposed to virus. ...
... A) Gram-positive bacteria B) Gram-negative bacteria C) bacteriophages 6. Interferons function to make cells A) resistant to viral infection. B) lyse when exposed to virus. ...
viruses_bacteria
... • Tail contracts • base plate perces the cell wall • DNA or RNA is injected into the cell ...
... • Tail contracts • base plate perces the cell wall • DNA or RNA is injected into the cell ...
Teacher
... low pH) 3.uncoating Rapid change from stable structure to release of genome 4. biosynthesis: 4.1 Three kinds of strategies for RNA viruses: (1 )Positive-strand viruses a. SYNTHESIS OF VIRAL PROTEINS The mRNA is translated into a single polypeptide (polyprotein), which is cleaved. Products of cleavag ...
... low pH) 3.uncoating Rapid change from stable structure to release of genome 4. biosynthesis: 4.1 Three kinds of strategies for RNA viruses: (1 )Positive-strand viruses a. SYNTHESIS OF VIRAL PROTEINS The mRNA is translated into a single polypeptide (polyprotein), which is cleaved. Products of cleavag ...
Lecture 3 Virus
... envelopes, membranes cloaking their capsids. • These envelopes are derived from the membrane of the host cell. ...
... envelopes, membranes cloaking their capsids. • These envelopes are derived from the membrane of the host cell. ...
#23 Viruses made by: marah marahleh corrected by: Amer Al
... Ex : S.aureus cause food poisoning if I have a case of food poisoning in salt and another Case in aqaba , in epidemiological studies I need to know if the same strain of the bacteria caused the food poisoningin both cases . so we take the bacteria samples that have collected and infect it with a vir ...
... Ex : S.aureus cause food poisoning if I have a case of food poisoning in salt and another Case in aqaba , in epidemiological studies I need to know if the same strain of the bacteria caused the food poisoningin both cases . so we take the bacteria samples that have collected and infect it with a vir ...
Virues and Bacteria
... What is a Virus?? Non-living particles that can’t reproduce; contain nucleic acids (DNA or RNA) and is enclosed in a protein coat *Smaller than the smallest bacterium and must have a host; do replicate on their own *Don’t carry out respiration, develop or grow *Found soil, air, water *Can mutate t ...
... What is a Virus?? Non-living particles that can’t reproduce; contain nucleic acids (DNA or RNA) and is enclosed in a protein coat *Smaller than the smallest bacterium and must have a host; do replicate on their own *Don’t carry out respiration, develop or grow *Found soil, air, water *Can mutate t ...
Clinical Group - Chulabhorn Research Institute
... Enz integrase incorporates the virus’ genetic material into the T cell’s DNA -Drug called integrase inhibitors, which are designed to halt this process, are in development ...
... Enz integrase incorporates the virus’ genetic material into the T cell’s DNA -Drug called integrase inhibitors, which are designed to halt this process, are in development ...
Hepatitis - Arkansas State University
... • Rhinoviruses: major cause of common cold – Rhino means nose ...
... • Rhinoviruses: major cause of common cold – Rhino means nose ...
PowerPoint Presentation - Ch14 Virions, Prions, and
... • Capsid (protein coat) made up of capsomeres • Naked vs. enveloped viruses • Attachment proteins or spikes in enveloped viruses Distinct from bacteriophages • Segmented viruses (contain more than one RNA molecule) • Plant viruses do not enter via receptor attachment Shapes: Isometric Helical Pleomo ...
... • Capsid (protein coat) made up of capsomeres • Naked vs. enveloped viruses • Attachment proteins or spikes in enveloped viruses Distinct from bacteriophages • Segmented viruses (contain more than one RNA molecule) • Plant viruses do not enter via receptor attachment Shapes: Isometric Helical Pleomo ...
Viral Structure
... Nucleocapsid: genome + capsid Envelope: viruses can be enveloped or not Virion: a complete virus particle with its DNA or RNA core and protein coat as it exists outside the cell; also called a viral particle Translation Parasites: must use cellular ribosomes in a host in order to replicate ...
... Nucleocapsid: genome + capsid Envelope: viruses can be enveloped or not Virion: a complete virus particle with its DNA or RNA core and protein coat as it exists outside the cell; also called a viral particle Translation Parasites: must use cellular ribosomes in a host in order to replicate ...
VIRUSES
... DNA of the host cell where it reproduces along with the cell until it enters the lytic cycle and spreads. ...
... DNA of the host cell where it reproduces along with the cell until it enters the lytic cycle and spreads. ...
29_viruses
... functions as a template for synthesis of complementary RNA strands (pink) by a viral ...
... functions as a template for synthesis of complementary RNA strands (pink) by a viral ...
RNA silencing
... RNA silencing• plant “immunity” to viral infection involves spread of signals across membranes • silencing triggered by dsRNA, transgenes, viruses • If virus carries a plant gene, that plant gene is also silenced • “Recovery”- when virus degrades the virus entirley, and is now protected against inf ...
... RNA silencing• plant “immunity” to viral infection involves spread of signals across membranes • silencing triggered by dsRNA, transgenes, viruses • If virus carries a plant gene, that plant gene is also silenced • “Recovery”- when virus degrades the virus entirley, and is now protected against inf ...
Viral Structure Virion, protein capsid, some have lipid envelope
... • The simplest way to arrange multiple, identical protein subunits is to use rotational symmetry & to arrange the irregularly shaped proteins around the circumference of a circle to form a disk. • Multiple disks can then be stacked on top of one another to form a cylinder, with the virus genome ...
... • The simplest way to arrange multiple, identical protein subunits is to use rotational symmetry & to arrange the irregularly shaped proteins around the circumference of a circle to form a disk. • Multiple disks can then be stacked on top of one another to form a cylinder, with the virus genome ...
Virus (Latin: slimy toxin, venom) English viruses plural but actually
... strategy to avoid restriction enzyme digestion of DNA by host: hydroxymethylcytosine-glucose to imitate methylation (restriction methylation systems are a major anti-phage defense of prokaryotes) cut DNA at specific sequences, often palidromes 3. early transcription 30 sec to 7 min, host polymerase ...
... strategy to avoid restriction enzyme digestion of DNA by host: hydroxymethylcytosine-glucose to imitate methylation (restriction methylation systems are a major anti-phage defense of prokaryotes) cut DNA at specific sequences, often palidromes 3. early transcription 30 sec to 7 min, host polymerase ...
Antiviral Drugs
... – HIV makes long precursor protein which is then cut into functional proteins by HIV protease • Protease inhibitors such as saquinavir, ritonavir, and indinavir block this step. ...
... – HIV makes long precursor protein which is then cut into functional proteins by HIV protease • Protease inhibitors such as saquinavir, ritonavir, and indinavir block this step. ...