infections‚ and now are not. 6. Describe the change in the environment that occurred. “Strains evolved mechanisms to inhibit the aminoglycosides’ action‚ which occurs via protonated amine and/or hydroxyl interactions with the ribosomal RNA of the bacterial 30S ribosomal subunit” 7. Identify whether the environmental change was a physical or chemical change. Chemical 8. identify and describe the selective pressure acting on the organism as a result of the environmental change.
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2013 DESIGNER GENES TRAINING GUIDE by Karen L. Lancour DISCLAIMER - This presentation was prepared using draft rules. There may be some changes in the final copy of the rules. The rules which will be in your Coaches Manual and Student Manuals will be the official rules. • BE SURE TO CHECK THE 2013 EVENT RULES for EVENT PARAMETERS and TOPICS FOR EACH COMPETITION LEVEL TRAINING MATERIALS: • Training Power Point presents an overview of material in the training
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GROUP 6 ANIMAL CELL and It’s Functions ANIMAL CELL: About animal cell usually have an irregular shape. are eukaryote cells‚ or cells with a membrane bound nucleus. DNA is housed within the nucleus. Also contain other membrane bound organelles‚ or tiny cellular structures that carry out specific functions necessary for normal cellular operation. smaller than plant cells. Cell Membrane is the outermost component of a cell. it is composed of 55% proteins‚ 25% phospholipids
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the single strands to make two new DNA. Each DNA will have an old strand and a new strand. RNAwhich is a nucleic acid‚ a nucleotidediffers from DNA in three ways: 1. sugar is ribose; 2. there is a single strand of nucleotides‚ not two; 3. and uracil instead of thymine. There are three types of RNA: 1. mRNAmessengertakes the message from DNA to the ribosome; 2. rRNAribosomalthe ribosomes are made of RNA; 3. tRNAtransferbrings amino acids to the mRNA‚ about 80 nucleotides long. There are two
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classification that results in a binomial name. classification is used to make it easier for different species to be identified by scientists. The current system‚ the Three Domain System ‚ groups organisms primarily based on differences in ribosomal RNA structure. Ribosomal RNA is a molecular building block for ribosomes . Under this system‚ organisms are classified into three domains and six kingdoms . The domains are Archaea‚ Bacteria‚ and Eukarya. The kingdoms are Archaebacteria (ancient bacteria)‚ Eubacteria
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survival. However the DNA contained in them is not necessary for reproduction or other basic cell functions. There is more than one type of RNA: ribosomal RNA and other proteins complex to form the ribosome. Ribosomes are structures that serve us protein factories for a cell. The cell cannot survive without proteins‚ ribosomes are vital to cell life. Like DNA‚ RNA is a component of all living cells and it is composed of nucleotides and arranged in long
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recombinant DNA Definition: DNA that contains genes from more than one source. Describe three uses for recombinant DNA Drugs Hormones Vaccines Nucleic acids for research Compare and contrast the general structural composition of DNA and RNA DNA RNA Sugar (pentose) Deoxyribose Ribose Bases AGTC AGUC Strands Double stranded with base single stranded pairing Helix Yes No Similarities: Nucleotides are basic structural unit Complementary base pairing by hydrogen bonds
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of threads called chromatin‚ which is indistinct in the nondividing cell‚ but it condenses to chromosomes at the time of cell division. This is where the DNA resides. The most prominent structure in the nucleus is the nucleolus which produces ribosomal RNA or rRNA. Multicellular organisms consist of many cells that are specialized for one particular function and carry it out very efficiently. The labor in a eukaryotic cell is divided with each part of the cell doing its job so as to ensure the
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Study Guide 3/1/11 1. Describe the three parts of a nucleotide and how they bond to form a nucleotide. The three parts of a necleotide are a carbon sugar‚ a phosphate group and a nitrogenous base. The carbon sugars bond to the phosphate groups by covalent bonds while the nitrogenous base bonds with it’s compliment by hydrogen bonds. 2. Summarize the role of covalent bonds and hydrogen bonds in the structure of DNA. The role of covalent
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to 16‚571 base pairs. mtDNA is round; this round shape is also referred to as a plasmid‚ unlike traditional linear nucleic DNA. The plasmid is divided into four main regions. It contains a D-loop‚ Transfer RNA‚ Ribosomal RNA and a region that genes make proteins. The Transfer RNA‚ Ribosomal RNA and the gene area are referred to as the “coding region.” The D-loop is also known as the hypervariable region. This area is considered to be a non-vital part of the mtDNA. This is because mutations in
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