Viruses Chap 13
... of 48.5 kb. The genome is linear except for a single stranded 12-nucleotide tail found on the 5’ end of each strand. These single stranded regions are complementary and in the host cell anneal and the DNA is ligated to form a double stranded circle. attaches to cell surface receptor (LamB). Immedi ...
... of 48.5 kb. The genome is linear except for a single stranded 12-nucleotide tail found on the 5’ end of each strand. These single stranded regions are complementary and in the host cell anneal and the DNA is ligated to form a double stranded circle. attaches to cell surface receptor (LamB). Immedi ...
DNA & CHROMSOMES - Ramsey Public School District
... lipids, carbohydrates and RNA– infection still occurred unless the nucleic acid DNA, was destroyed.) ...
... lipids, carbohydrates and RNA– infection still occurred unless the nucleic acid DNA, was destroyed.) ...
eprint_5_13643_353
... messengers of influenza virus have capped leader sequences derived from cellular messengers. In addition, they lack 17 to 22 nucleotides at the 3' end. Moreover, replication requires ongoing protein synthesis to provide the required proteins, whereas transcription does not. In RNA replication, the n ...
... messengers of influenza virus have capped leader sequences derived from cellular messengers. In addition, they lack 17 to 22 nucleotides at the 3' end. Moreover, replication requires ongoing protein synthesis to provide the required proteins, whereas transcription does not. In RNA replication, the n ...
Chapter 12
... 12.3 DNA Replication Replication is the process by which DNA copies itself before cell division. -Strands separate, and each old strand serves as a template for the new strand to form. ...
... 12.3 DNA Replication Replication is the process by which DNA copies itself before cell division. -Strands separate, and each old strand serves as a template for the new strand to form. ...
DNA History and Replication
... Chargaff • DNA composition: “Chargaff’s rules” • varies from species to species • all 4 bases not in equal quantity • bases present in characteristic ratio • humans: A = 30.9% T = 29.4% G = 19.9% C = 19.8% That’s interesting! What do you notice? ...
... Chargaff • DNA composition: “Chargaff’s rules” • varies from species to species • all 4 bases not in equal quantity • bases present in characteristic ratio • humans: A = 30.9% T = 29.4% G = 19.9% C = 19.8% That’s interesting! What do you notice? ...
What Microbiology is all about
... Polio caused epidemics during the 20th century until the first vaccine was discovered in 1952 Polio caused paralysis or even death. The disease was spread by person to person contact like the common cold. The Salk vaccine discovered by Jonas Salk in 1952, it was made from killed virus The Sabin vac ...
... Polio caused epidemics during the 20th century until the first vaccine was discovered in 1952 Polio caused paralysis or even death. The disease was spread by person to person contact like the common cold. The Salk vaccine discovered by Jonas Salk in 1952, it was made from killed virus The Sabin vac ...
Viruses
... Over the past 10 years: As the global HIV epidemic continues, sporadic cases and outbreaks in humans of some non-human host viruses such as Ebola and Hanta raise the concern about future epidemics by other viruses in the new century. ...
... Over the past 10 years: As the global HIV epidemic continues, sporadic cases and outbreaks in humans of some non-human host viruses such as Ebola and Hanta raise the concern about future epidemics by other viruses in the new century. ...
JSReviewExam#4
... Transposable elements: "selfish DNA", inserts itself into new positions in genome; about 45% of human DNA Bacterial genomes are 1 long, circular chromosome in the nucleoid region Know 6 levels of eukaryotic chromosome packing Mitochondria and chloroplasts have a little bit of their own DNA s ...
... Transposable elements: "selfish DNA", inserts itself into new positions in genome; about 45% of human DNA Bacterial genomes are 1 long, circular chromosome in the nucleoid region Know 6 levels of eukaryotic chromosome packing Mitochondria and chloroplasts have a little bit of their own DNA s ...
DNA Replication - The Biology Corner
... 1. DNA helicase (enzyme) unwinds the DNA. The junction between the unwound part and the open part is called a replication fork. 2. DNA polymerase adds the complementary nucleotides and binds the sugars and phosphates. DNA polymerase travels from the 3' to the 5' end. The DNA is called the template s ...
... 1. DNA helicase (enzyme) unwinds the DNA. The junction between the unwound part and the open part is called a replication fork. 2. DNA polymerase adds the complementary nucleotides and binds the sugars and phosphates. DNA polymerase travels from the 3' to the 5' end. The DNA is called the template s ...
Student Team 1 Presentation
... 1 Department of Medicine, University of California, San Francisco, San Francisco, California, United States of America, 2 Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, California, United States of America University of California, San Francisco, S ...
... 1 Department of Medicine, University of California, San Francisco, San Francisco, California, United States of America, 2 Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, California, United States of America University of California, San Francisco, S ...
Microbial Models: Genetics of Viruses and Bacteria
... • foreign DNA may be integrated into the bacterial chromosome by recombination • Progeny carry the new combination of genes • Many bacteria have suface proteins that recognize and import naked DNA from closely related bacteria species • Some bacteria may be induced to take up foreign DNA by incubati ...
... • foreign DNA may be integrated into the bacterial chromosome by recombination • Progeny carry the new combination of genes • Many bacteria have suface proteins that recognize and import naked DNA from closely related bacteria species • Some bacteria may be induced to take up foreign DNA by incubati ...
The Hershey-Chase Blender Experiment
... • performed by Alfred Hershey and Martha Chase at Cold Spring Harbor Laboratory in New York in 1952 • published: AD Hershey and M Chase “Independent functions of viral protein and nucleic acid in growth of bacteriophage” Journal of General Physiology 36: 39-56 (May 1952) • using Escherichia coli (E. ...
... • performed by Alfred Hershey and Martha Chase at Cold Spring Harbor Laboratory in New York in 1952 • published: AD Hershey and M Chase “Independent functions of viral protein and nucleic acid in growth of bacteriophage” Journal of General Physiology 36: 39-56 (May 1952) • using Escherichia coli (E. ...
7.6 Viruses
... transcriptase. Thus it can be inferred that the virus A. Uses only DNA B. Uses only RNA C. Uses RNA as a template for DNA D. Uses DNA as a template for RNA E. Replicates continuously ...
... transcriptase. Thus it can be inferred that the virus A. Uses only DNA B. Uses only RNA C. Uses RNA as a template for DNA D. Uses DNA as a template for RNA E. Replicates continuously ...
PowerPoint Presentation - Introduction to viruses
... and entry Uncoating of virion Migration of genome nucleic acid to nucleus Transcription Genome replication Translation of virus mRNAs Virion assembly Release of new virus particles ...
... and entry Uncoating of virion Migration of genome nucleic acid to nucleus Transcription Genome replication Translation of virus mRNAs Virion assembly Release of new virus particles ...
When Did Virology Start? - American Society for Microbiology
... understand that viruses have discrete sizes, ranging from that of the smallest bacteria to two- to threefold larger than several proteins found in serum. Is Bacteriophage a Virus? The Phage Group was instrumental in making bacteriophage the model for virus studies. In the 1950s and 196Os, members of ...
... understand that viruses have discrete sizes, ranging from that of the smallest bacteria to two- to threefold larger than several proteins found in serum. Is Bacteriophage a Virus? The Phage Group was instrumental in making bacteriophage the model for virus studies. In the 1950s and 196Os, members of ...
DNA - Experiments and Discoveries
... The Twisted Ladder -A double helix looks like a twisted ladder or a spiral staircase. -In DNA, hydrogen bonds only form between certain nitrogenous bases in the double helix to hold it together, this is known as base pairing. -Every adenine molecule binds with a thymine and every cytosine molecule ...
... The Twisted Ladder -A double helix looks like a twisted ladder or a spiral staircase. -In DNA, hydrogen bonds only form between certain nitrogenous bases in the double helix to hold it together, this is known as base pairing. -Every adenine molecule binds with a thymine and every cytosine molecule ...
Viruses
... provirus in its chromosomes. This process can continue for years, with no harm to the host. As part of the host chromosomes, the virus cannot be easily detected by medical tests. At any time, however, the provirus can separate from the host chromosomes and complete the more damaging lytic cycle show ...
... provirus in its chromosomes. This process can continue for years, with no harm to the host. As part of the host chromosomes, the virus cannot be easily detected by medical tests. At any time, however, the provirus can separate from the host chromosomes and complete the more damaging lytic cycle show ...
Chapter Objectives: Chapters 18~19: Genetics of
... Chapter Objectives: Chapters 18~19: Genetics of Viruses and Bacteria 1. Describe the contributions of A. Mayer, D. Ivanowsky, M. Beijerinck, and W. Stanley to the discovery of viruses 2. List and describe the structural components of viruses 3. Explain why viruses are obligate parasites 4. Describe ...
... Chapter Objectives: Chapters 18~19: Genetics of Viruses and Bacteria 1. Describe the contributions of A. Mayer, D. Ivanowsky, M. Beijerinck, and W. Stanley to the discovery of viruses 2. List and describe the structural components of viruses 3. Explain why viruses are obligate parasites 4. Describe ...
What are viruses?
... Most viruses are restricted to a particular type of host. Some infect bacteria, and are known as bacteriophages, whereas others are known that infect algae, protozoa, fungi (mycoviruses), invertebrates, vertebrates or vascular plants. However, some viruses that are transmitted between vertebrate or ...
... Most viruses are restricted to a particular type of host. Some infect bacteria, and are known as bacteriophages, whereas others are known that infect algae, protozoa, fungi (mycoviruses), invertebrates, vertebrates or vascular plants. However, some viruses that are transmitted between vertebrate or ...
Unit 4
... 11. Explain how viruses may cause disease symptoms, and describe some medical weapons used to fight viral infections. Damage or kill cells. In response to a viral infection, lysosomes may release hydrolytic enzymes. Be toxic themselves or cause infected cells to produce toxins. Cause varying degrees ...
... 11. Explain how viruses may cause disease symptoms, and describe some medical weapons used to fight viral infections. Damage or kill cells. In response to a viral infection, lysosomes may release hydrolytic enzymes. Be toxic themselves or cause infected cells to produce toxins. Cause varying degrees ...
CHAPTER18-20test
... 1. The function of reverse transcriptase in retroviruses is to a. hydrolyze the host cell’s DNA b. use viral RNA as a template for DNA synthesis c. convert host cell RNA into viral DNA d. translate viral RNA into proteins e. use viral RNA as a template for making complementary RNA strands 2. Viruses ...
... 1. The function of reverse transcriptase in retroviruses is to a. hydrolyze the host cell’s DNA b. use viral RNA as a template for DNA synthesis c. convert host cell RNA into viral DNA d. translate viral RNA into proteins e. use viral RNA as a template for making complementary RNA strands 2. Viruses ...
Intermediate Inheritance or Incomplete Dominance
... In 1952 conducted series of experiments using virus that attack bacteria Used a virus with a DNA core surrounded by a protein coat Labeled protein with radioactive sulfur (35S) Virus allowed to infect bacteria Bacteria did not show marker Labeled DNA with 32P Once DNA inside bacteria cell, viral DNA ...
... In 1952 conducted series of experiments using virus that attack bacteria Used a virus with a DNA core surrounded by a protein coat Labeled protein with radioactive sulfur (35S) Virus allowed to infect bacteria Bacteria did not show marker Labeled DNA with 32P Once DNA inside bacteria cell, viral DNA ...
Genes and proteins
... polyomaviruses infecting birds, rodents, cattle; and two human viruses: BK and JC virus. ...
... polyomaviruses infecting birds, rodents, cattle; and two human viruses: BK and JC virus. ...
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.