An example of modern forensics evidence is the use of DNA fingerprints. Sources of DNA include blood‚ hair‚ semen‚ saliva‚ bone and tissue. Each person has a unique DNA fingerprint. A DNA fingerprint is the same for every cell‚ tissue‚ and organ of a person. It cannot be altered by any known treatment. Consequently‚ DNA fingerprinting is rapidly becoming the primary method for identifying and distinguishing among individual human beings . An additional application of DNA fingerprint technology is the diagnosis of inherited disorders in adults
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while others have to buy water or walk for miles to attain enough water to survive. In many cases water is being wasted. Hydrogen bonding holds water molecules together. At 32 degrees the kinetic energy is so low that the water freezes. When the temperature rises the kinetic energy thaws and we then have liquid water again. When the molecules absorb energy from the sunlight evaporation takes place and this is called water vapor which is
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7.1.1 Describe the structure of DNA‚ including the antiparallel strands‚ 3’-5’ linkages and hydrogen bonding between purines and pyrimidines. DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5’ terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3’ terminal). The strands run in opposite directions
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The DNA double helix model In 1953 James Watson and Francis Crick made a scientific breakthrough when they discovered the structure of DNA. From this structure they inferred that DNA contains information written in a genetic code‚ is passed from one generation to the next. This discovery was to be a key step in the genetics revolution DNA has four molecular building blocks called nucleotides; adenine (A)‚ thymine (T) guanine (G) and cytosine (C). Purine base always pairs (by hydrogen bonding) with
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DNA replication: DNA replication is a biological process that occurs in all living organisms and copies their DNA; it is the basis for biological inheritance. The process starts when one double-stranded DNA molecule produces two identical copies of the molecule. The cell cycle (mitosis) also pertains to the DNA replication/reproduction process. The cell cycle includes interphase‚ prophase‚ metaphase‚ anaphase‚ and telophase. Each strand of the original double-stranded DNA molecule serves as template
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Computing Computer Science & Engineering DNA Computing Computer chip manufacturers have discovered that sooner or later the physical speed and miniaturization limits of silicon chip is bound to hit a wall‚ therefore they need a new material to produce faster computing speed with fewewr complexity. DNA‚ the material are genes are made of‚ is being used to built the next generation of microprocessor. A nascent technology that uses DNA molecules is to build computers that are faster than
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An Introduction to DNA microarrays Rebecca Fry‚ Ph.D. http://www.buffalo.edu/UBT/UBT What is a DNA Microarray? genes or gene fragments attached to a substrate (glass) Tens of thousands of spots Hybridized slide Two dyes Image analyzed 1 The Beginnings of Microarray Technology Lockhart et al.‚ 1996 Nature Biotechnology “Expression monitoring by hybridisation to high-density oligonucleotide arrays” Schena et al.‚ 1995 Science “Quantitative monitoring of gene expression
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will finish off talking about PCR‚ and then we will discuss how it can be used. If we go back to the slide of the double stranded DNA‚ and if we take that to a high temperature‚ the two strands separate‚ you then add the primers‚ which interact with ? On the strand‚ synthesis takes place in the 5-3 direction‚ then you end up with 2 molecules identical to the DNA‚ and then you do another round‚ so it’s an exponential increase. There are different enzymes and polymerases‚ which come from bacteria
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industry‚ Lowest cost within an industry segment‚ Better product/service across the industry and Better product /service within an industry segment. Among the four competitive strategies aTiM engages in focusing within the industry segment by offering a specific type of product within the framework of art. For example‚ aTiM does not provide products/services for all types of artwork but focuses on ceramics‚ textiles and photography. aTiM also serves the Bloomington area supporting those artist from within
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Fibonacci Sequence Fibonacci‚ also known as the Leonardo of Pisa‚ born in the early 1770’s AD in Pisa‚ Italy‚ has had a huge impact on today’s math‚ and is used in everyday jobs all over the world. After living with his dad‚ a North African educator‚ he discovered these ways of math by traveling along the Mediterranean Coast learning their ways of math. With the inspiration from the “Hindu-Arabic” numerical system‚ Fibonacci created the 0-9 number system we still use to this day. One of his
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