Ultimate Biology Study Guide - Questions & Answers

describe the 4 steps you need to perform in order to create a standard curve a protein quantitation using protein standards and the bradford reagent.
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why is the presence of clay particles important in soil? why is the presence of clay particles important in soil? clay particles allow water to percolate through the soil, making oxygen-rich air pockets available. the negative charges on clay bind to positively charged ions, which would be toxic if absorbed by plants. the negative charges on clay bind to positively charged ions and prevent them from leaching. clay particles provide macronutrients-particularly nitrogen, phosphorus, and potassium.
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the dna with the gene of interest for a cloning experiment was left on the lab bench overnight (instead of storing it in the freezer). as a result, it was degraded. they didn't know the dna was left out and used it in the experiment. the plasmid, however, was stored correctly. the vector contains a gene for ampicillin resistance. after the transformation procedure, the bacteria were plated on media containing ampicillin. what results are expected from this faulty molecular cloning experiment?
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a) lipopolysaccharides or endotoxins, derived from the cell walls of gram-negative pathogenic microorganisms, are toxic to human tissue and cause inflammation and destruction of the periodontal attachment. b) endotoxins are embedded in the cemental surface and in the superficial biofilm and cannot be removed readily. group of answer choices statement a is true and statement b is false. statement a is false and statement b is true. both statements are true. both statements are false.
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at a previous visit, the parents of an infant with cystic fibrosis received instruction in the administration of pancrelipase. at a follow-up visit, which finding in the infant suggests that the parents require more teaching about administering the pancreatic enzymes?
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Select the observations that would indicate that a population is deviating from Hardy-Weinberg equilibrium.
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Drag each of the terrestrial blome names or descriptions, listed below on the left into its correct position on the graph.
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suggest two or more combinations of mutations that would tend to allow the cell cycle to become unregulated
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In the process of glycolysis, four atp molecules are synthesized from four adp molecules. why does glycolysis not yield four molecules of atp?
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Our sense of taste originally was thought to involve only the following foursensationsA) sweet, salty, starch, and bitter.B) salty, fatty, bitter, and sweet.C) sour, bitter, sweet, and starchy.D) bitter, sweet, sour, and salty.E) fruity, fatty, silky, and coarse.
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Alexander's mother has the blood type BO and his father has the blood type O. Which blood type could Alexander have? Draw a Punnett square on scratch paper to help you answer the question, if needed. ABAO
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19. how do enzymes speed up chemical reactions? a. i only b. i and ii only c. i and iii only d. ii and iii only e. i, ii and iii
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which location on the body has the smallest region of somatosensory cortex representing it, according to the sensory homunculus?
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which of the following is not part of thecytoskeleton? a) intermediate filaments b) actin filaments c) microtubules d)centrioles
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can humans cause disease-causing bacteria and viruses to change into a less harmful form using natural selection and evolution?
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the members of a population survive and successfully reproduce due to the specific phenotypes they posses. this is an example of
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the categories of skeletal muscle based on the type of metabolic pathway used for synthesis of atp are . multiple select question. glycolytic synaptic kinetic ionic oxidative
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the somatic cells of a parituclar plant each contain a total of 46 chromsomes. how do the chromsomes of this plant difer from the chromsomes of humansa, who also have a total of 46
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when a large egg is dropped from 5 meters onto a 1-inch foam surface, it landed safely. which changes in conditions would lead to a fracture or a broken egg? select all that would.
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following glycolysis and the krebs cycle, the carbon skeleton of glucose has been broken down to co2. at this point, most of the energy from the original glucose is in the form of:
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mycobacterium tuberculosis is taken up by lung macrophages but is not digested. what protects these bacteria in the macrophage so that they can survive and reproduce in the lungs?
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which of the following represents the most likely sequence of the evolution of plants? seedless vascular plants, angiosperms, gymnosperms, bryophytes, charophyceans charophyceans, seedless vascular plants, bryophytes, angiosperms, gymnosperms bryophytes, charophyceans, gymnosperms, seedless vascular plants, angiosperms bryophytes, charophyceans, seedless vascular plants, angiosperms, gymnosperms charophyceans, bryophytes, seedless vascular plants, gymnosperms, angiosperms
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antibodies binding to their antigen can activate complement. this, in turn, leads to opsonization of the antigen-antibody complexes. what is meant by opsonization? multiple choice clumping together of the antibody-antigen complexes. lysis of the cells bearing the antibody-antigen complexes. clumping of antibody-antigen complexes into insoluble substances. coating antibody-antigen complexes, making them more easily phagocytized by macrophages and neutrophils.
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outline an optimal treatment plan for julie and explain your reasoning. discuss the tradeoff s encountered during the composition of your plan (consider alternative drug targets and a bone marrow transplant).
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