"Rna" Essays and Research Papers

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Virus biology

that protects the genetic material of the virus from the host’s defensive cells. The capsid is made up of proteins. The nucleic acid is what is contained within the capsid, which is a group of long, linear macromolecules, consisting of either DNA or RNA. There are two different cycles in which the virus uses a host cell to replicate and reproduce itself. These two cycles are known as the lytic cycle, and the lysogenic cycle. In the lytic cycle, viral particles are made from the host bacteria cell’s...

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Laboratory, Cold Spring Harbor, N.Y., 1989. Basic Tools for DNA Manipulation and Molecular Genetic Analysis Enzymes Vectors Gel Electrophoresis PCR Southern blotting Gel Electrophoresis Gel is a complex net work of polymeric molecules Both DNA and RNA are negatively charged owing to phosphate backbone Nucleic acids migrate in a gel toward anode (+) at a rate that is inversely proportional to the log10 of the molecular weight Gel Electrophoresis Migration of nucleic acids depends on pore size...

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Ebola Virus

strains and transmission, the treatments, and hope. {Transition} Let’s start with how the Ebola virus spreads and the symptoms. BODY I. The Ebola virus attacks cells the same way all viruses do. A. It attaches itself to the cell, inserts its RNA into the host cell, and begins to multiply until the cell bursts open and thousands more of the virus spreads into the host, attacking even more cells. B. This massive reproduction normally results in massive hemorrhage through the body which drastically...

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CRISPR-Cas9 Case Study

nickase that primarily generates DSBs (double stranded breaks) by creating two separate single-strand breaks on opposite DNA strands via the expression of two separate guide RNAs, has been shown to reduces off-target formation at computationally predicted off target sites 2. However, both the structure and composition of the guide RNA also affect the frequency of off-target effects.Thus, selection of a target site that has no homologous sequence throughout the genome is an ideal way for reducing off-target...

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Prokaryotes Eukaryotes and Viruses

of slime layer. * A virus is a genetic element that disturbs normal cellular processes for its own replication and has a mature infectious extracellular form. * It is a symmetrical structure * It essentially is a nucleic acid(DNA/RNA) surrounded by a non cellular protective coat * There is no metabolism hence no respiration, or biosynthesis * As it has no metabolism, it is obligate intracellular parasites as it can only be maintained inside living cells. * They...

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Task 2 Biochemistry

water jets (MSDS, 2005). • Valine is slightly toxic to humans in cases of ingestion and inhalation. Valine also crosses the placental barrier (MSDS, 2005). B. Levels of protein Structures Primary • DNA makes RNA, RNA Protein • Proteins are polypeptides- which are chains of Amino Acids • RNA instructs the assignment of the amino acids • The primary structure of a protein is the order and organization of the amino acids (Wolf, 2009). B. Levels of protein Structures Secondary • Secondary structure...

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Diploma Nursing

Structure of nitrogen bases & base pairing. ii) Structure of nucleosides & nucleotides, ribose, deoxyribose sugars. iii) DNA : properties, forms , structure, function as genetic material. Types of DNA iv) RNA : Structure, function, types (r-RNA, m-RNA, t-RNA ) v) Comparative account of DNA & RNA. H & buffers. pH titration curve, PK value. P Credit – 2 Anaerobic respiration : NO3 , SO4 and CO2 as electron acceptors. Bacterial photosynthesis : i) Photosynthetic bacteria, ii) Photopigments and associated...

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Hiv and Aids

cell count and level of plasma HIV RNA are important parts of the routine evaluation and monitoring of HIV-infected individuals. The CD4+ T cell count is a generally accepted indicator of the immunologic competence of the patient with HIV infection, and there is a close relationship between the CD4+ T cell count and the clinical manifestations of AIDS. While the CD4+ T cell counts provides information on the current immunologic status of the patient, the HIV RNA level predicts what will happen to...

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The Structure & Function of Dna

9. Only the genes necessary for each cell's specialized Structure and function will be transcribed. 10. Explain alternative RNA splicing. A type of regulation at the RNA processing level where different mRNA molecules are produced from the same primary transcript depending on which RNA segments are treated as exons or introns. 11. How might the rate of mRNA breakdown in the cytoplasm be utilized as a means of gene regulation? ...

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Chloramphenicol: The Effects Of Bacterial Microorganisms

of membrane integrity, degradation of ribonucleic acid (RNA), and associated bactericidal effect found in the bacterial strains. The greatest effect the antibiotic had was on the inhibition of deoxyribonucleic acid (DNA) synthesis and the RNA synthesis was affected less. Novobiocin does not inhibit nucleoside synthesis or degrade DNA, or affect the energy metabolism of the microorganism and therefore must inhibit the synthesis of DNA and RNA through polymerase complexes. (Smith, 1967) ...

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