LECTURE 10 Viruses I. Properties of viruses. 1. They are obligate
... 1. They are obligate intracellular parasites. 2. They are incapable of independent metabolism. 3. They are smaller than the tiniest bacteria. 4. They possess one type of nucleic acid, either DNA or RNA. 5. While in the host cell, viruses undergo an “eclipse phase”. 6. Some viruses can be crystallize ...
... 1. They are obligate intracellular parasites. 2. They are incapable of independent metabolism. 3. They are smaller than the tiniest bacteria. 4. They possess one type of nucleic acid, either DNA or RNA. 5. While in the host cell, viruses undergo an “eclipse phase”. 6. Some viruses can be crystallize ...
Viral Genetics
... It is often used to designate different wild types of the same virus (isolated from different geographical locations or patients). ...
... It is often used to designate different wild types of the same virus (isolated from different geographical locations or patients). ...
Viruses - Fillingham
... Prions: are misfolded, infectious proteins that cause the misfolding of normal proteins in the brains of various animal species. Their damage to the brain accumulates over time and eventually leads to death. • Examples of diseases caused by prions include mad cow disease and, in humans, Creutzfeldt ...
... Prions: are misfolded, infectious proteins that cause the misfolding of normal proteins in the brains of various animal species. Their damage to the brain accumulates over time and eventually leads to death. • Examples of diseases caused by prions include mad cow disease and, in humans, Creutzfeldt ...
Virus Webquest - Northwest ISD Moodle
... they ________________, animals, plants, or bacteria. 5. Viruses are further classified into families and genera based on three structural considerations: 1) the type and size of their ___________________________, 2) the size and shape of the __________________________, 3) whether they have a lipid _ ...
... they ________________, animals, plants, or bacteria. 5. Viruses are further classified into families and genera based on three structural considerations: 1) the type and size of their ___________________________, 2) the size and shape of the __________________________, 3) whether they have a lipid _ ...
Viruses
... * Rod-shaped (helical), Polyhedral, or more complex * Built from large # of protein subunits, called ...
... * Rod-shaped (helical), Polyhedral, or more complex * Built from large # of protein subunits, called ...
Chapter 19 – Viruses Virus • Obligate intracellular parasite • No
... Virus attaches to receptor site on host Nucleic Acid enters cell o Can enter w/o capsid o Enters w/ capsid & released inside Rest of reproduction depends on type of nucleic acid present DNA Viruses o e.g. bacteriophages (bacteria virus) o Viral DNA replicated by host o Viral DNA transcribed ...
... Virus attaches to receptor site on host Nucleic Acid enters cell o Can enter w/o capsid o Enters w/ capsid & released inside Rest of reproduction depends on type of nucleic acid present DNA Viruses o e.g. bacteriophages (bacteria virus) o Viral DNA replicated by host o Viral DNA transcribed ...
Slide 1
... • DNA is a double-stranded molecule that forms a helical configuration and is measured in terms of numbers of base pairs. • The two strands in the double helix are antiparallel, but inverted repeats allow for the formation of secondary structure. • The strands of a double-helical DNA molecule can b ...
... • DNA is a double-stranded molecule that forms a helical configuration and is measured in terms of numbers of base pairs. • The two strands in the double helix are antiparallel, but inverted repeats allow for the formation of secondary structure. • The strands of a double-helical DNA molecule can b ...
d- All the above.
... a. electronic microscopy b. ultra-filtration c. Gram stain d. A and B are true 23. RNA viruses are … a. single strand b. double strand c. triple strand d. no correct answer. 24. Functions of viruses nucleic acid are.. a. carries the genetic information b. control all the virus characters c. carries ...
... a. electronic microscopy b. ultra-filtration c. Gram stain d. A and B are true 23. RNA viruses are … a. single strand b. double strand c. triple strand d. no correct answer. 24. Functions of viruses nucleic acid are.. a. carries the genetic information b. control all the virus characters c. carries ...
A CELLULAR FORMS (Viruses & Bacteriophages)
... • Rod-shaped. They are 300 mμ in length and 15 mμ in width. It is represented by the tobacco mosaic virus. • Cuboid. With a size ranging from 210 to 305 mμ. This form is found in cowpox and canary pox viruses (Fig. 26 C ) . • Spermatozoid-shaped. The size varies from 10 to 225 mμ. This form is chara ...
... • Rod-shaped. They are 300 mμ in length and 15 mμ in width. It is represented by the tobacco mosaic virus. • Cuboid. With a size ranging from 210 to 305 mμ. This form is found in cowpox and canary pox viruses (Fig. 26 C ) . • Spermatozoid-shaped. The size varies from 10 to 225 mμ. This form is chara ...
Virus and Bacteria Worksheet
... T/F state whether the statement is true or false. If FALSE correct what is wrong to make the statement true. 1. _________________ All viruses look alike 2. _________________ Bacteria are unicellular 3. _________________ Bacteria have cell walls 4. _________________ Bacteria have a nucleus 5. _______ ...
... T/F state whether the statement is true or false. If FALSE correct what is wrong to make the statement true. 1. _________________ All viruses look alike 2. _________________ Bacteria are unicellular 3. _________________ Bacteria have cell walls 4. _________________ Bacteria have a nucleus 5. _______ ...
#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 ...
Bacteria and Virus Basics
... derived from fungi, bacteria, and other organisms that can destroy other microorganisms. ...
... derived from fungi, bacteria, and other organisms that can destroy other microorganisms. ...
Giant virus qualifies as `living organism`
... Roll up, roll up, to meet Mimi, the biggest virus in the world. This monster has just had its genome sequenced, and scientists say that, unlike its fellow viruses, it may truly be called 'alive'. The virus's genetic sequence also holds clues that may explain the evolution of the very first cells pos ...
... Roll up, roll up, to meet Mimi, the biggest virus in the world. This monster has just had its genome sequenced, and scientists say that, unlike its fellow viruses, it may truly be called 'alive'. The virus's genetic sequence also holds clues that may explain the evolution of the very first cells pos ...
Taxonomy/Microorganisms Test Review Sheet Name: Please
... kingdom whose members exhibit these traits: multicellular, true nucleus, possess cell walls, must obtain food, representative organisms include mushrooms and yeast? OR Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to what kingdom? ...
... kingdom whose members exhibit these traits: multicellular, true nucleus, possess cell walls, must obtain food, representative organisms include mushrooms and yeast? OR Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to what kingdom? ...
Plant Viruses - rci.rutgers.edu
... different hosts • No “rules” about virus families that may or may not be present in a given kingdom • Some types of viruses are found more commonly in some kingdoms than in others – Many plant viruses contain ssRNA genomes – Many fungal viruses contain dsRNA genomes – Many bacterial viruses contain ...
... different hosts • No “rules” about virus families that may or may not be present in a given kingdom • Some types of viruses are found more commonly in some kingdoms than in others – Many plant viruses contain ssRNA genomes – Many fungal viruses contain dsRNA genomes – Many bacterial viruses contain ...
Kingdom: Viruses
... their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), and method of replication. Group I: double-stranded DNA viruses Group II: single-stranded DNA viruses Group III: double-stranded RNA viruses Group IV: positive-sense single-stranded RNA viruses Group V: neg ...
... their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), and method of replication. Group I: double-stranded DNA viruses Group II: single-stranded DNA viruses Group III: double-stranded RNA viruses Group IV: positive-sense single-stranded RNA viruses Group V: neg ...
Virus Replication PPT
... capsid genetic material (DNA or RNA) Envelope made of stolen cell membrane Glycoproteins that attach to cells (handshake) ...
... capsid genetic material (DNA or RNA) Envelope made of stolen cell membrane Glycoproteins that attach to cells (handshake) ...
DR10.3A Viruses
... _____ 20. The host cell replicates the virus’s genes. _____ 21. The host cell is destroyed. _____ 22. The virus’s genes enter the host. _____ 23. The virus finds a host cell. 24. Describe the lysogenic cycle. _______________________________________________________________ ___________________________ ...
... _____ 20. The host cell replicates the virus’s genes. _____ 21. The host cell is destroyed. _____ 22. The virus’s genes enter the host. _____ 23. The virus finds a host cell. 24. Describe the lysogenic cycle. _______________________________________________________________ ___________________________ ...
1. What are the symptoms in bacterial disease: Cankers, Wilts, Shoot
... either deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). Unlike living cells, viruses will have either DNA or RNA, but not both. The genetic material is a blueprint for determining the structure and behavior of a cell. In a virus, a protein coat called a "capsid" surrounds the nucleic acid. Thi ...
... either deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). Unlike living cells, viruses will have either DNA or RNA, but not both. The genetic material is a blueprint for determining the structure and behavior of a cell. In a virus, a protein coat called a "capsid" surrounds the nucleic acid. Thi ...
Bacteria and Viruses Bacterial Cells Bacterial Genome Bacterial
... – They aren’t made of cells – They can’t reproduce on their own – They don’t grow or develop ...
... – They aren’t made of cells – They can’t reproduce on their own – They don’t grow or develop ...
Viruses Lecture 1
... Ebola – filamentous form – 60-80nm in diameter, on average 1000 nm long (but highly variable) Chickenpox virus Polio Virus Influenza virus HIV virus Hepatitis – this one actually Hepatits B magnified 120,000X Foot and Mouth disease – 1967 outbreak in the UK saw the destruction of 400,000 animals Vir ...
... Ebola – filamentous form – 60-80nm in diameter, on average 1000 nm long (but highly variable) Chickenpox virus Polio Virus Influenza virus HIV virus Hepatitis – this one actually Hepatits B magnified 120,000X Foot and Mouth disease – 1967 outbreak in the UK saw the destruction of 400,000 animals Vir ...
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.