for washing machines. She sold that patent rights for $18.00 because she was afraid it wouldn’t be successful due to her color. Rosalind Franklin (1920-1957) She discovered the helix shape of DNA. Most of her work was stolen by Watson and Crick who were awarded the Nobel prize for the discovery of the double helix. She died from cancer at a young age. Sophia Germain (1776-1831) She was a mathematician and who taught her self much of what she knew. She was obsessed with learning to the point
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Name: ______________________________________ Date: ________________________ Student Exploration: Building DNA Vocabulary: double helix‚ DNA‚ enzyme‚ lagging strand‚ leading strand‚ mutation‚ nitrogenous base‚ nucleoside‚ nucleotide‚ replication Prior Knowledge Questions (Do these BEFORE using the Gizmo.) DNA is an incredible molecule that forms the basis of life on Earth. DNA molecules contain instructions for building every living organism on Earth‚ from the tiniest bacterium to
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less space. There are two types of folding‚ the first of which is beta-pleated sheets‚ where the primary structure would resemble continuous spikes forming a horizontal strip. The second type of folding is an alpha helix‚ which goes vertically forming a wavy line. An alpha helix is in the same shape of one strand of DNA. These new formations are held together by hydrogen bonds. The third level is the tertiary structure. The tertiary structure of a protein is a contorted secondary structure
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Summary of Carbohydrates: Monosaccharides‚ Disaccharides‚ Polysaccharides Carbohydrates are molecules that are synthesized from carbon‚ oxygen‚ and hydrogen atoms. Some types of carbohydrates consist of a single unit consisting of a few atoms‚ while other carbohydrates consists of thousands of units linked together through chemical bonds. Glucose‚ maltose‚ and glycogen are three carbohydrates that are similar‚ but structurally different. Carbohydrates have the general molecular formula CH2O. Starch
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A proteins secondary structure comes from the folding and coiling of the proteins polypeptide chains. A secondary structure can be a helix‚ or pleated sheet. Helix secondary structures is a coil formed together by hydrogen bonding‚ pleated sheets have two or more parts of the polypeptide chain lying beside one another. An overall shape of a polypeptide is referred to as a tertiary structure‚ that
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A well-designed experiment will have only one critical variable that is changed over several trials A bacterium swimming away from a toxic chemical is an example of what aspect of living things? the capacity to respond to environment Evolution is a central‚ unifying theme in biology because the enormously diverse forms of life on Earth have all been shaped by it An atom with an unequal number of protons and electrons is called an ion. This produces a charged atom‚ or ion. An
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The DNA double-helix is separated into two single-stranded template strands. The strands are antiparallel to each other‚ running in the opposite directions. One of the strands runs in the 5′ to 3′ direction‚ and the other runs in the 3′ to 5′ direction. However‚ as we
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The original or classical eugenics movement was conceived in the late 19th century and served as a way to “keep certain strains out of our blood”.1 The more progressive eugenics movement‚ denoted positive eugenics‚ has a slightly different undercurrent – and promotes better prenatal and natal health in order to improve population health.2 Nonetheless‚ the underlying idea of eugenics as a means to promote “survival of the fittest” has been perpetuated through prenatal genetic testing and‚ a step further
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Materials * Helical spring * support * rods * weight hanger * slotted masses * vertical scale * stopwatch. Procedure Part I: Determination of k from Hooke’s Law 1. Suspend the spring from its support. 2. Hook the weight hanger from the bottom loop of the spring and determine the vertical scale reading of the bottom of the weight hanger. 3. Record this as the equilibrium position of the system. 4. Add 5 g to the weight hanger and again record the actual
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THE EXTRACTION OF DNA THE EXTRACTION OF DNA 07/02/2013 | By Laura Green‚ Tasnim Rahman and Sandra Strammiello | Table of Contents DNA………………………………………………………………………………………..………… 2 The Discovery of DNA…………………………………………………………………………...…………..…………. 4 The Steps for Extracting DNA…………………………………………………………………………………………….…..… 5 Experiment: Which Product Can the Most Visible Amount of DNA Be Extracted From?..............................................................................................
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