molecules of RNA polymerase following each other like trucks in a convoy. * The enzyme adds nucleotides to the 3’ end of the growing RNA molecule as it continues along the double helix. In the wake of this advancing wave of RNA synthesis‚ the new RNA molecule peels away from its DNA template‚ and the DNA double helix re-forms. Termination of
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New York City has been called "the greatest city in the world" numerous times by its own people and visitors to the city. New York is civilization’s greatest world within a city. It gives the overpowering impression of being a magnet and mirror for all of humanity and all that humanity does. For a city so young‚ New York is home to number of architectural classics. Two of these masterpieces of architecture are the Metropolitan Museum of Art and the Guggenheim Museum. Both continue the metaphor of
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Distance Learning vs. the Traditional Classroom Non-traditional students are finding it easier and easier to maintain a job‚ a family‚ and pursuing a college career at the same time. This is possible because more and more non-traditional students are receiving an education using distance learning‚ as opposed to traditional‚ in-the-classroom teaching. Distance learning is basically taking college level‚ credit-bearing courses via the Internet. One of the most obvious advantages of distance
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Cited: Crick‚ Francis. "The Double Helix: A Personal View." Medical Research Council Laboratory for Molecular Biology 248 (1974): 766-69. Print. "DNA: Structure and Function." Making the Modern World. N.p.‚ n.d. Web. 04 Apr. 2013. Kuhn‚ Thomas. "The Nature and Necessity of Scientific Revolutions
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scientific consensus is that the complex biochemistry that makes up life came from simpler chemical reactions. The beginning of life may have included self-replicating molecules such as RNA‚ and the assembly of simple cells.1‚ 2 Fig-1: DNA Double Helix Heritable traits are known to be passed from one generation to the next via DNA‚ a molecule that encodes genetic information. DNA is a long polymer composed of four types of bases. The sequence of bases along a particular DNA molecule specify the genetic
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Proteins play an important role in the human body. The DNA molecule controls the synthesis of proteins. The DNA contains genes which are sequences of nucleotides and bases. Proteins are used for growth and repair. Proteins are made up of amino acids linked together by peptide bonds. Firstly ’amino acid synthesis ’ is the set of biochemical processes by which the various amino acids are produced from other compounds. The substrates for these processes are various compounds in the organism ’s diet
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Unit 3 Lecture Study Guide 1. List the 4 primary tissue types and give the general characteristics and functions of each one. Nerve Tissue: transmit nerve impulses; coordinates and regulates body activities‚ bind and support nerve tissue; carry on phagocytosis; connect neurons to blood vessels‚ changes shape from squamous to cuboidal Epithelial Tissue: covers all free body surfaces and lines organs‚ anchored to connective tissue by basement membrane‚ lacks blood vessels‚ can reproduce
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of inorganic material and collagen fibers. The macroscopic structures of bone is Compact bone‚ Cancellous bone‚ Epiphysis‚ Diaphysis‚ Periosteum‚ Red bone marrow‚ yellow bone marrow‚ and the articular cartilage (Doitpoms.com). Collagen is a triple helix structured protein that is the most prominent protein in the skeletal system. Bones consist of two distinct types of bone tissue such as cancellous and cortical bone. Cancellous bone is also known as spongy bone and is located at the ends of long bones
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Biology 1308 Review Quiz 3 Macromolecules 1. Class of molecules to which DNA belongs NUCLEOTIDE 2. Glucose‚ fructose and galactose are MONOSACCHARIDE (SIMPLE SUGAR) 3. The compounds above in #2 have the same chemical formula but differ in ARRANGEMENT OF THE ATOMS. IDENTICAL MOLECULAR FORMULA BUT DIFFERENT STRUCTURAL FORMULA. 4. Starch and cellulose are examples of SUGARS 5. Sucrose‚ maltose‚ and lactose are of DISACCHARIDES (DOUBLE-SUGARS) 6. Chemical reactions that link two or more
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The Boeing B-17 Flying Fortress is a four-engine heavy bomber aircraft developed in the 1930s for the United States Army Air Corps The Boeing B-17 bomber was an innovative plane introduced by the United States military in 1938. It was the most durable plane of World War II‚ and completed many successful missions in its ten-year commission. This four-engine bomber was developed for the United States Army Air Corps -4000 pounds of bombs -it can go at least 2000 miles -eight 50-calliber machine
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