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anna goicoechea

anna g.

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5mC is a hotspot for mutation. (1) What is the chemical basis for the hotspot phenomenon? (2) And what base does 5mC typically change to? In looking at the frequency of all 16 possible dinucleotides in mammalian genomic DNA (AA, AC, AG, AT, CA, CC, etc), researchers long ago observed their frequencies were somewhat different from the expected 1/16. Modest deviations from 1/16 frequency can be explained by the fact that the G+C:A+T ratio in mammalian DNA is approximately 2:3. But the biggest discrepancy is that the CG dinucleotide frequency is much lower than 1/16. For example, in humans it is 5-fold lower. (3) Can you offer an explanation for this fact?

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4. [T] If two electrical resistors are connected in parallel, the total resistance (measured in ohms, denoted by the Greek capital letter omega, ?) is given by the equation \frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2}. If $R_1$ is increasing at a rate of 0.5 ?/min and $R_2$ decreases at a rate of 1.1 ?/min, at what rate does the total resistance change when $R_1 = 20?$ and $R_2 = 50?$?

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Shirley is an 18-year-old female who lives with her mother Angela. Recently, Angela has noticed several changes in her daughter’s body appearance and behavior. Shirley has swelling in her anterior neck and her eyes look like they are popping out of her face. Angela prepares Shirley three healthy meals a day and Shirley seems to be constantly snacking between meals; however, Shirley is losing weight. Shirley is always up during the night, and she complains about not being tired. Lately, Angela has to keep the house very cool because Shirley breaks out in sweats and complains about being hot. Angela makes Shirley a doctor’s appointment to find out what is going on. During Shirley’s examination, the Doctor notices that she has a rapid heartbeat (tachycardia) and labored breathing (dyspnea). Shirley’s lab results revealed elevated levels of T3/T4 hormones and decreased levels of TSH in her blood. What is the cause of the swelling on Shirley's anterior neck? Inflammation of the parathyroid glands Inflammation of the thyroid cartilage Development of a goiter Atrophy of the thyroid gland

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A small country consists of four states. The population of State A is 67,200, the population of State B is 78,300, the population of State C is 73,800, and the population of State D is 80,700. The total number of seats in the legislature is 100. What is the standard quota for State C? ? A. 26.1 ? B. 26.9 ? C. 24.6 ? D. 25.7 ? E. none of the above

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Part A A truck is traveling at 15 m/s on a slippery road. The driver slams on the brakes and the truck starts to skid. If the coefficient of kinetic friction between the tires and the road is 0.20, how far will the truck skid before stopping? 11 m 37 m 57 m 110 m

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Rank the solutions below in order of decreasing acidity. Question List (5 items) (Drag and drop into the appropriate area) pH = 5.4 pH = 3.37 pH = 7 POH = 12

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1. Use partial fraction decomposition to find each integral. Show all your work a) \( \int \frac{t}{2t^2 + 7t - 4} dt \)

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Write a Boolean expression that is True if x is greater than y. 1 Enter your code

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1. ?? 1? ?? ?? ????? ??? ????? (30) (Analysis the beam as shown in Fig.1 by using the conjugate beam method) ?? EI? ???? ??? ? (Show the answer using \"EI\") (1) AB???? ?? ??? ????. (Maximum defection in the region AB) (2) A???? ???? ????. (Deflection angle at A) 30kN 30kN A 3m 4m 3m B Fig. 1

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According to Aristotle, a democracy is a type of government in which one person rules in the public interest. a few people rule in the public interest. a few people rule in their own self interest. many people rule in the public interest. many people rule in their own self interest.

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