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danielle lewis

danielle l.

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Which of the following is NOT associated with a Phase II trial? Group of answer choices fewer than 50 patients randomization tests side effects tests tolerability All of these are associated with Phase II trials.

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explain why the "envelope" conformation of cyclopentane is lower in E than the planer conformation while explaining what happens to the angle strain and torsional strain

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Which of the following terms is correct in context with "conception within the rat's mind of the maze's layout"? Cognitive mapping Paradigm shift Classical conditioning Behaviorism

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explain the experiences that a special education child with down syndrome might experience when transitioning to college

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devise a genetic test for c elegans that will allow you to determine if a mutation is sex link dominant

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Select ALL the correct statements below related to Viscosity Index (VI). A. When temperature is larger than 20°C, larger VI, larger dynamic viscosity. B. The larger VI value means the bigger change in viscosity with respect to temperature change. C. The larger VI value means the smaller change in viscosity with respect to temperature change. D. When temperature is smaller than 20°C, larger VI, larger dynamic viscosity.

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What is the minimum number of hidden nodes needed to classify (into +'s and -'s) the following data using a single layer MLP?

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2) A population of snapdragons 77 red-flowered individuals, 144 pink-flowered individuals, and 34 white-flowered individuals. What are the frequencies of the three phenotypes? In snapdragons, flower color is incompletely dominant such that red individuals are \( \mathbf{R R} \), pink individuals are \( \mathbf{R r} \), and white individuals are \( \mathrm{rr} \). Given that this is the case, what are the genotype frequencies of the three genotypes? What are the allele frequencies of the \( \mathrm{R} \) and \( \mathrm{r} \) alleles? Expert answer B Expert in Biology To find out the genotype frequencies we need to divide the individuals of a particular color by the total no of individuals. Red (homozygous dominant): \( 77 / 255=30 \) Pink (heterozygous): \( 144 / 255=.56 \) White (homozygous recessive): \( 34 / 255=.13 \) To find the allele frequency first find \( q \) by taking the square root of the recessive genotype frequency i.e. \( q^{2}=.37 \) And the frequency of the dominant allele \( p \) because \( 1-q=p \). Thus, the frequency of the dominant allele \( =.63 \). Was this answer helptul? 120

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3: Hydrohalogenation of Alkynes The hydrohalogenation of alkynes is very similar to the hydrohalogenation of alkenes. H?C == X X H-CI H-CI (1 equiv) H?C (1 equiv) HC a vinyl chloride a geminal dichloride Questions: 1) These questions refer to the first step that forms a vinyl chloride from an alkyne a. This is a (substitution or elimination or addition) reaction. b. The regioselectivity of this step is (Markovnikov or anti-Markovnikov or neither). 2) These questions refer to the second step that converts the vinyl chloride into a geminal dichloride. a. This is a (substitution or elimination or addition) reaction. b. The regioselectivity of this step is (Markovnikov or anti-Markovnikov or neither). 3) What reagent(s) would you use for the anti-Markovnikov hydrohalogenation of an alkene or alkyne? a. Draw the product if 1 equivalent of that reagent were added to the alkyne in the reaction above. b. Draw the product if an excess of that reagent was added to the alkyne.

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HW-09 Chapter 9 & 12 14 Part 2 of 4 Saved Required information For the five independent projects given, the capital budget limit is $120,000, the MARR is 10% per year, and all projects have a 10-year life. 1.56 points Project First Cost, $ Net Income, $ per Year IROR, % PW at 10%, $ A -18.000 4000 18.0 6578 B -15,000 2800 13.3 2205 C -35,000 12,600 34.1 42,422 eBook D -60,000 13,000 17.3 19.879 E -50,000 8000 9.6 -843 Hint Ask Rank and select from the independent projects using the IROR measure. Find the investment required for the selection. References Select projects C, A, and B The investment is $

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