http://en.wikipedia.org/wiki/Solenoid Solenoid From Wikipedia‚ the free encyclopedia A solenoid is a coil wound into a tightly packed helix. In physics‚ the term solenoid refers to a long‚ thin loop of wire‚ often wrapped around a metallic core‚ which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets. The term solenoid refers specifically to a magnet designed to produce
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DNA is the primary genetic material that makes each individual different. DNA is the molecule that makes up chromosomes each pair of chromosomes contains DNA from one parent. DNA is found in the nuclei of eukaryotic cells and prokaryotic cells in living organisms. DNA is so important it is unable to leave the nucleus therefore the body makes RNA to carry information out into the cytoplasm. The three major components of DNA nucleotide monomers are phosphate‚ 5 carbon ring sugar (de-oxyribose) and
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Endosymbiont theory There is compelling evidence that mitochondria and chloroplasts were once primitive bacterial cells. Both mitochondria and chloroplasts contain a ring of DNA double helix‚ just like that contained by a prokaryote. They also contain the small ribosomes‚ like those of prokaryotes. These features have caused some evolutionary biologists to suggest that some organelles are descendants of free- living prokaryotic organisms that came to inhabit larger cells. Present day prokaryotes
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genetic information similar to the way a builders blue print sets out the design of a house. Without DNA there would be no such thing as the human race. Within our bodies there is DNA in every cell. Each DNA molecule is shaped in the form of a double helix. It is made up of long strands of interchanging phosphates and sugars as well as nitrogenous bases. The nitrogenous bases that make up DNA are adenine‚ thymine‚ guanine and cytosine. These bases pair with each other in a special combination; adenine
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going to be like. These labels provide the exact guidelines as to how that person is to act‚ feel‚ behave and think. * corrupted power -The conflict is shifted from our level of financial status to whether or not an individual has the best DNA helix. The invalids are doomed to a life of inferiority because they lack the more desirable genes. These people aren’t less capable of doing their job‚ but it is more about whether you are genetically specified for their socially unacceptable characteristics
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CHAPTER EIGHT 8 AN OVERVIEW OF GENE EXPRESSION HOW TRANSCRIPTIONAL SWITCHES WORK THE MOLECULAR MECHANISMS THAT CREATE SPECIALIZED CELL TYPES POST-TRANSCRIPTIONAL CONTROLS Control of Gene Expression An organism’s DNA encodes all of the RNA and protein molecules that are needed to make its cells. Yet a complete description of the DNA sequence of an organism—be it the few million nucleotides of a bacterium or the few billion nucleotides in each human cell—does not enable us to reconstruct the
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against which all others were compared. Chancourtois noticed that certain of the triads appeared below one another in his spiral. In particular the tetrad oxygen‚ sulfur‚ selenium and tellurium fell together‚ and he called his device the "telluric helix". The atomic weights of these elements are 16‚32‚79 and 128‚ respectively‚ and quite fortuitously they are multiples or near multiples‚ of 16. Other parts of the screw were less successful. Thus boron and aluminium come together all right but are
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The first one being the primary level. These are made up of sequences of amino acids and these amino acids are linked together by peptide bonds. The next level is called secondary. This level is a formation of amino acid chains folded together by a helix formation or a pleated sheet. The bonds between
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Othello Review Venue: The Helix‚ Dublin. Second Age Theatre Company. Overview of Othello: This drama is one of the great tragedy themed plays by William Shakespeare. Othello is a highly esteemed general in the service of Venice. Iago is Othello’s ambitious friend. Othello promotes the Michael Cassio to the position of personal lieutenant and Iago is deadly jealous. Iago begins an evil and malicious campaign against the hero. Othello elopes with Desdemona but Iago starts to plot against them
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A palindromic recognition sequence is a nucleic acid sequence‚ whether DNA or RNA. This sequence is the same whether read five-prime to three-prime on one strand or three-prime to five-prime on the complementary strand. This is what forms a double helix. Restriction enzymes are bacterial enzymes that cut both strands of DNA at specific nucleotide sequences. These enzymes digest DNA by cutting the sequence at specific locations called restriction sites. Some restriction enzymes cleave DNA strands
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