allele is expressed. The segregation of chromosomes at random during anaphase I explains Mendel’s observation that factors‚ or genes‚ for different traits are inherited independently of each other. Apply the rules of probability to infer genotypes from test crosses A test cross is used to determine the genotype of an individual with a dominant trait. Because the trait is dominant‚ an individual with the trait could be homozygous or heterozygous for the trait. (This cannot always be determined
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Chemotherapeutic Agents of Control: Introduction: Chemotherapeutic agents are chemical substances used to treat various forms of infectious diseases. The chemotherapeutic agent works by stopping the bacteria from reproducing. There are two different kinds of chemotherapeutic agents. The first kind is an antibiotic‚ which slow down the growth of microorganisms. The second kind of chemotherapeutic agent is synthetic drugs. Synthetic drugs are artificially made in a laboratory. Chemotherapy
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solutions with varying pH Laboratory Notebook pH paper Background pH stands for potential hydrogen. This is a measure of the acidity or basicity of a solution. Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. The pH scale is a set of standard solutions whose pH is established by international agreement. A substance that is neither acidic nor basic is neutral. Solutions with a pH less than 7
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Potato Osmosis Biology SL - ATh INVESTIGATION “Potato Osmosis” INTRODUCTION Osmosis is a process that occurs at a cellular level that entails the spontaneous net movement of water through a semi-permeable membrane from a region of low solute concentration to an area of high solute concentration in order to equalize the level of water in each region. Involved in this process are hypotonic‚ hypertonic and isotonic solutions. A hypotonic solution is one with a lower osmotic pressure‚ indicating
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Billy Crystal was originally offered the opportunity to voice Buzz Lightyear but declined‚ stating later that it was the biggest regret of his career. After Pixar heard that he’d said that‚ they offered him the role of Mike in Monsters‚ Inc. 5.) Kevin from Up is based on the Himalayan Monal pheasant‚ a bird found in western China. 6.) Pixar was worried that people would not know how to say Ratatouille‚ so all the logos on the promotional posters also had the pronunciation as “rat-a-too-ee” underneath
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of homemade materials‚ then it would be possible for it to travel 8 meters powered by a nine inch balloon. Independent Variable: building the car from homemade materials. Dependent Variable: The results of speed and distance from the car responding to the materials Rationale: In this experiment‚ the challenge is to build a balloon powered car from homemade materials that can travel at least 8 meters. According to Newton’s Third law‚ it is possible to accomplish this objective. Force is any push
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mitigate the risk (pay attention to polarity!). We give the elements in this circuit some simple values for the purpose of better description and explanation. Say V = 5V‚ R= 1 Ω and L = 1H. Assume inductor is initially uncharged. FIGURE 1 From Figure 1: At t0‚ switch is opened. VL= L (di/dt) . L = 1H di=(Ifinal – Iinitial) = (0 – 5) dt= 0.02s‚ say it takes this amount of time to open the switch. Hence‚ VL = (1) (-5) (0.02) VL = -250 V The electrical potential difference
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BioLab3 Lab Report 5 Enzymes Student Name: Cooper Lyon I. Enzyme Structure and Function EXERCISE 1 – Preparation of an enzyme activity standard At five minute intervals over the next fifteen minute period‚ record the color intensity of the solution of each test tube. Time (min) Tube S1 Potato Extract + Catechol Tube S2 Potato Extract + Water Tube S3 Catechol + Water 0 Shade of Yellow Clear/Milky Clear/Milky 5 Shade of Yellow Clear/Milky Clear/Milky 10 Orange Clear/Milky Clear/Milky 15
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a reduction reaction on the ketone group of camphor to the OH group on isoborneol. In order to successfully synthesis the reactant to the product‚ NaBH4 was used as the main reagent to reduce the carbonyl double bond. One believes the formation of isoborneol was successfully due to the product’s percent yield‚ IR‚ and melting point. During the lab‚ .077 grams of isoborneol was yielded from the camphor reduction. In result‚ .077 g compared to an theoretical yield of .102 g equaled an overall 75% percentage
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Introduction Acid rain refers to a phenomenon in which "[precipitation] from the atmosphere [contains] higher than normal amounts of nitric and sulfuric acids". The precipitation that results in acid rain comes from the pollution emitted by human activities‚ such as factories‚ electrical power plants and automobiles. Two main pollutants are sulfur dioxide (SO2) and nitrogen dioxide (NO2)‚ which reacts with substances in the atmosphere‚ such as water and oxygen‚ to form acid rain. While rain water
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