Chapter 1 ppt
... •Consist of DNA or RNA and may contain protein for replication and pathogenesis; components are then enclosed in a protein coat with or without a lipid membrane coat. •Parasites- requiring host cell to replicate •The cells they infect and the host response to the infectious dictate the nature of the ...
... •Consist of DNA or RNA and may contain protein for replication and pathogenesis; components are then enclosed in a protein coat with or without a lipid membrane coat. •Parasites- requiring host cell to replicate •The cells they infect and the host response to the infectious dictate the nature of the ...
Jeff Newman - Davidson College
... structural and functional identification of proteins/genes.” • Justin Jay – “they provide us with a dictionary of the different genes a microbe has. With this information we can cut and paste different genes into different organisms.” • Amy Allen – “if people know the sequence for specific microbes ...
... structural and functional identification of proteins/genes.” • Justin Jay – “they provide us with a dictionary of the different genes a microbe has. With this information we can cut and paste different genes into different organisms.” • Amy Allen – “if people know the sequence for specific microbes ...
Answers to Mastering Concepts Questions
... matter in soil and water, as photosynthesizers that contribute O2 to the atmosphere, and as the base of the food chain in many environments. Some prokaryotes also fix nitrogen, which enriches soils and completes the nitrogen cycle. 2. The microbes that colonize the human body help defend it from att ...
... matter in soil and water, as photosynthesizers that contribute O2 to the atmosphere, and as the base of the food chain in many environments. Some prokaryotes also fix nitrogen, which enriches soils and completes the nitrogen cycle. 2. The microbes that colonize the human body help defend it from att ...
Genes Lost and Genes Found: Evolution of Bacterial Pathogenesis
... were not pathogenic before the acquisition of these genes. However, it is important to note that the ancestors to these pathogens already possessed many of the traits required to cope with environments presented by animal hosts, including mechanisms to counteract host defenses and biosynthetic pathw ...
... were not pathogenic before the acquisition of these genes. However, it is important to note that the ancestors to these pathogens already possessed many of the traits required to cope with environments presented by animal hosts, including mechanisms to counteract host defenses and biosynthetic pathw ...
Name________________________ Concepts in Biology Exam #4
... French naturalist George Buffon was one of the first to suggest that the Earth was only 6000 years old. ...
... French naturalist George Buffon was one of the first to suggest that the Earth was only 6000 years old. ...
Prokaryotic organisms
... • different from plant, fungi, protists cell walls • peptidoglycan (polymers of sugar cross-linked by short peptides that vary from species to species) ...
... • different from plant, fungi, protists cell walls • peptidoglycan (polymers of sugar cross-linked by short peptides that vary from species to species) ...
Lecture 1 Introduction, History and Microscopy
... have now been prepared for all the major prokaryotic and eukaryotic groups. • A huge database of rRNA sequences exists. For example, the Ribosomal Database Project (RDP) contains a large collection of such sequences, now numbering over 100,000. • The universal phylogenetic tree is the road map of li ...
... have now been prepared for all the major prokaryotic and eukaryotic groups. • A huge database of rRNA sequences exists. For example, the Ribosomal Database Project (RDP) contains a large collection of such sequences, now numbering over 100,000. • The universal phylogenetic tree is the road map of li ...
File
... Lysogenic: Attach to a host, enters, viral DNA becomes part of host cell’s chromosome (provirus formation), onset of disease at lytic cycle. 7. What is a prion? How can they cause diseases? Prion-protein, no DNA or RNA, harmful when it changes molecular shape. 8. Briefly describe 3 ways viruses are ...
... Lysogenic: Attach to a host, enters, viral DNA becomes part of host cell’s chromosome (provirus formation), onset of disease at lytic cycle. 7. What is a prion? How can they cause diseases? Prion-protein, no DNA or RNA, harmful when it changes molecular shape. 8. Briefly describe 3 ways viruses are ...
“All the World`s a Phage” The Role of Bacterial Viruses in
... found associated with bacteria in all environmental niches. Marine ecologists believe that bacteriophages kill between 5% and 40% of marine prokaryotes daily by viral lysis, which gives them a key role in planetary carbon cycling. Bacteriophages provide one of the major mechanisms for horizontal gen ...
... found associated with bacteria in all environmental niches. Marine ecologists believe that bacteriophages kill between 5% and 40% of marine prokaryotes daily by viral lysis, which gives them a key role in planetary carbon cycling. Bacteriophages provide one of the major mechanisms for horizontal gen ...
Chapter 28 - Dr. Jennifer Capers
... History of Microbiology • The size of prokaryotic cells led to their being undiscovered for most of human history • In 1546, Italian physician Girolamo Fracastoro suggested that disease was caused by unseen ...
... History of Microbiology • The size of prokaryotic cells led to their being undiscovered for most of human history • In 1546, Italian physician Girolamo Fracastoro suggested that disease was caused by unseen ...
Bacteria Characteristics Quiz Answers
... 9. Which best describes the location of the bacterial DNA? a) Bacterial DNA is located in the nucleus. b) Bacterial DNA is located in the nucleoid. c) Bacterial DNA is located in the cytoplasm. d) Bacterial DNA is located in the middle of the cell. ...
... 9. Which best describes the location of the bacterial DNA? a) Bacterial DNA is located in the nucleus. b) Bacterial DNA is located in the nucleoid. c) Bacterial DNA is located in the cytoplasm. d) Bacterial DNA is located in the middle of the cell. ...
biomimicry techniques
... Genetic engineering is an excellent tool through which we can modify the genome of an organism, so that we can generate the modified offspring. For example…. Transgenic animals, i.e., engineered to carry genes from other species, have the potential to improve human welfare. The underlying principle ...
... Genetic engineering is an excellent tool through which we can modify the genome of an organism, so that we can generate the modified offspring. For example…. Transgenic animals, i.e., engineered to carry genes from other species, have the potential to improve human welfare. The underlying principle ...
Recomn in Bacteria and Viruses
... inactivation of antibiotic by enzymatic modification sequestering of the antibiotic by protein binding metabolic bypass of inhibited reaction overproduction of antibiotic target (titration) binding of specific immunity protein to antibiotic ...
... inactivation of antibiotic by enzymatic modification sequestering of the antibiotic by protein binding metabolic bypass of inhibited reaction overproduction of antibiotic target (titration) binding of specific immunity protein to antibiotic ...
Molecular Analysis of Genes
... Fig 22.6 Detection of the sickle-cell hemoglobin mutation by Southern blot analysis of genomic DNAs cut with ...
... Fig 22.6 Detection of the sickle-cell hemoglobin mutation by Southern blot analysis of genomic DNAs cut with ...
Phylogenetic Trees
... • First edition published in 1984, with significantly updated editions since ...
... • First edition published in 1984, with significantly updated editions since ...
bacteria - Cloudfront.net
... • Allow bacteria to stick to host • Some allow conjugation – Exchange of plasmids ...
... • Allow bacteria to stick to host • Some allow conjugation – Exchange of plasmids ...
Evidence for Evolution
... resemble bacterial structure genetic mitochondria & chloroplasts have their own circular DNA, like bacteria functional mitochondria & chloroplasts move freely within the cell mitochondria & chloroplasts reproduce independently from the cell ...
... resemble bacterial structure genetic mitochondria & chloroplasts have their own circular DNA, like bacteria functional mitochondria & chloroplasts move freely within the cell mitochondria & chloroplasts reproduce independently from the cell ...
PN-II-RU-TE-2012-3 “Retrieving new bacterial isolates for potential
... the same composition but containing different gelling agent. The detailed taxonomic characterization of selected new species candidates has been initiated, including a phylogenetic analysis based on the complete 16S rRNA gene and side-by-side physiological tests with type strains of closely related ...
... the same composition but containing different gelling agent. The detailed taxonomic characterization of selected new species candidates has been initiated, including a phylogenetic analysis based on the complete 16S rRNA gene and side-by-side physiological tests with type strains of closely related ...
Microbial Genomes
... • Replication initiates from a single fixed origin. • Little or no horizontal gene transfer. ...
... • Replication initiates from a single fixed origin. • Little or no horizontal gene transfer. ...
Anaplasma phagocytophilum and Ehrlichia chaffeensis: subversive
... Anaplasma spp. and Ehrlichia spp. cause several emerging human infectious diseases. Anaplasma phagocytophilum andEhrlichia chaffeensis are transmitted between mammals by blood-sucking ticks and replicate inside mammalian white blood cells and tick salivary-gland and midgut cells. Adaptation to a lif ...
... Anaplasma spp. and Ehrlichia spp. cause several emerging human infectious diseases. Anaplasma phagocytophilum andEhrlichia chaffeensis are transmitted between mammals by blood-sucking ticks and replicate inside mammalian white blood cells and tick salivary-gland and midgut cells. Adaptation to a lif ...
No Slide Title
... no integration / similar to bacterial plasmid Stable transformation integration of foreign DNA in host genome stably maintained after cell division ...
... no integration / similar to bacterial plasmid Stable transformation integration of foreign DNA in host genome stably maintained after cell division ...
Horizontal gene transfer
Horizontal gene transfer (HGT) refers to the transfer of genes between organisms in a manner other than traditional reproduction. Also termed lateral gene transfer (LGT), it contrasts with vertical transfer, the transmission of genes from the parental generation to offspring via sexual or asexual reproduction. HGT has been shown to be an important factor in the evolution of many organisms.Horizontal gene transfer is the primary reason for bacterial antibiotic resistance, and plays an important role in the evolution of bacteria that can degrade novel compounds such as human-created pesticides and in the evolution, maintenance, and transmission of virulence. This horizontal gene transfer often involves temperate bacteriophages and plasmids. Genes that are responsible for antibiotic resistance in one species of bacteria can be transferred to another species of bacteria through various mechanisms (e.g., via F-pilus), subsequently arming the antibiotic resistant genes' recipient against antibiotics, which is becoming a medical challenge to deal with.Most thinking in genetics has focused upon vertical transfer, but there is a growing awareness that horizontal gene transfer is a highly significant phenomenon and among single-celled organisms perhaps the dominant form of genetic transfer.Artificial horizontal gene transfer is a form of genetic engineering.