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General Properties of virus
General Properties of virus

... transcribed by a unique virion associated reverse transcriptase into complementary ssDNA, which is converted into dsDNA, which becomes integrated into the cellular genome causing malignant transformation of cells in vivo and in vitro. It may be transcribed into mRNA. +ssRNA Reverse transcriptase ...
Virus Notes
Virus Notes

... genetic variation into the hosts. a. Viral replication differs from other reproductive strategies and generates genetic variation via various mechanisms. 1. Viruses have highly efficient replicative capabilities that allow for rapid evolution and acquisition of new phenotypes. Viral Recombination , ...
Gapped dsDNA genomes
Gapped dsDNA genomes

... seemingly  infinite  complexity  of    infec*ons   But  a  finite  number  of  viral  genomes ...
The Genetics of Bacteria and Viruses
The Genetics of Bacteria and Viruses

... polymerase, creating direct repeats, and then DNA ligase seals the old and new material. ...
QE GenKnowl Topics
QE GenKnowl Topics

... particular (1) the chemical nature of genetic material, (2) DNA structure and replication, (3) transcription, (4) translation, (5) cell growth control and (6) transport of molecules in cells? What strategies to viruses employ to divert host cell RNA and protein synthesis to the expression of viral R ...
Biological Properties of Tomato apex necrosis virus (ToANV)
Biological Properties of Tomato apex necrosis virus (ToANV)

... Not all genera are within assigned families at this time, and some new genera and families are not shown at right. According to Hull, (page 87) he says there are 977 species of plant viruses as of 2002, more are being identified all the time. Within the genus Potyvirus, there are more than 100 defin ...
Viruses, viroids, prions
Viruses, viroids, prions

... to transfer nucleic acids to other cells • All life forms are parasitized by specific virus • Virus that is not in host cell = virion – Metabolically inert – No respiratory or biosynthetic function ...
Chapter 6 An Introduction to Viruses
Chapter 6 An Introduction to Viruses

... – Negative-sense RNA must be converted into positive-sense message ...
Ch 18 Viruses and Bacteria
Ch 18 Viruses and Bacteria

... • Some relatively large viruses may have an additional layer, called an envelope, surrounding their capsids. ...
Viral Plant Pathogens
Viral Plant Pathogens

... nematodes. Viruses appropriate the genetic coding of the host cells and dictates to the host to produce more virus particles. Virus does not produce toxins nor do they consume plant cells. The host is damaged by interrupting Insect vector – circulative transmission ...
viruses
viruses

... a. they have RNA in their capsid and not DNA. b. they have DNA in their capsid and not RNA. c. after infection of a host cell, their RNA makes DNA. d. after infection of a host cell, their DNA makes RNA. ...
RNA genomes
RNA genomes

... complexity of infections But a finite number of viral genomes ...
Microbial Genetics
Microbial Genetics

... • A segment of DNA (e.g. and R-factor gene) which has a repeat of insertion sequence element at each end that can migrate from one plasmid to another at the same bacterium, to a bacterial chromosome or to a bacteriophage or from a chromosome to a plasmid(called jumping genes) ...
Ebola strain variation in outbreaks
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 ...
learning outcomes - McGraw Hill Higher Education
learning outcomes - McGraw Hill Higher Education

... list organisms that are hosts to viruses state the size range of virions identify the parts of a virion and describe their function distinguish enveloped from noneveloped viruses describe the types of capsid symmetry describe the five steps common to the life cycles of all viruses discuss the roles ...
Chapter 12: The Viruses and Virus
Chapter 12: The Viruses and Virus

... • The viral genome contains either DNA or RNA, but not both • The capsid is the protein coat, made up of capsomeres • The nucleocapsid is the capsid with its enclosed genome • Some capsid proteins are spikes that help the virus attach to and penetrate the host cell • Naked viruses are composed only ...
4. Virus Reproduction: Basic reproduction
4. Virus Reproduction: Basic reproduction

... 4. Virus Reproduction: Basic reproduction (virus without envelope), The Lytic Cycle (for bacteriophages) & The Lysogenic Cycle 4a. Virus Reproduction: BASIC REPRODUCTION The diagram on the left shows the simplest viral reproductive cycle of a virus. This occurs in viruses that do not have an envelop ...
LOct29 viruses
LOct29 viruses

...   Temperate Phage Infections (continued...) •  Lambda (λ) phage: DNA excised from chromosome only about once per 10,000 divisions of host bacterium ...
Bacteria / Virus ppt
Bacteria / Virus ppt

... (DNA OR RNA), protein coat (capsid) and sometimes lipids • MUST enter living cells in order to reproduce • Very small • Range from a few to 100s of genes ...
BIOL260Exam2 review
BIOL260Exam2 review

... 1. Know the definition of the following terms: genome, gene, protein, genomics, DNA replication, transcription, and translation. 2. What is meant by the terms genotype and phenotype? 3. What is a gene? What is the relationship between a gene and a protein? 4. Understand all the chemical components f ...
Chapter 21 Viruses
Chapter 21 Viruses

... Living things vs Viruses Both contain protein, genetic material, and they can reproduce. Viruses cannot eat, grow, break-down food, or use oxygen. They must depend on their HOST Cell ...
Size and Shape of Viruses
Size and Shape of Viruses

... Characteristics of Living Things Respond to stimulus: virus respond when a cell is near and attaches. Cells: Not cells as we know them Adapt: The viruses do mutate to become stronger but only in a host cell. Reproduces: only in a host cell Energy: Uses energy of the host DNA: Yes they do have their ...
Virus - Belle Vernon Area School District
Virus - Belle Vernon Area School District

... Can only grow within living cells Has 2 phases in their life cycle ...
File
File

... After the virus injects its information into the host cell, the viral DNA becomes part of the host DNA. Every time the host cell goes through cell division, the viral DNA is replicated and is inside each new daughter cell. Eventually, the virus goes back into the lytic cycle step – hijacking the hos ...
18.1 Studying Viruses and Prokaryotes
18.1 Studying Viruses and Prokaryotes

... • Viruses can reproduce only by using the structures of a living cell called the host cell • Viruses are pathogens = can cause an infectious disease ...
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Negative-sense single-stranded RNA virus

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