PCR is a method used to amplify DNA. All you need is your DNA, primers(small pieces of DNA) complementary to two sites in your DNA (one oneach strand), a heat-stable polymerase (enzyme that can make DNAaccording to a certain template), nucleotides and a thermo-cycler. Byadding all the ingredients and heating and cooling the mixture in certainpre-programmed cycles, you can amplify the DNA between the twoprimers. At 100% efficiency, the number of double stranded DNA pieces isdoubled in each cycle. Starting with 1 copy of double stranded DNA, howmany copies will you have after 15 cycles at 100% efficiency?Answer:

It is given in the question that at 100% efficiency, the number of double-stranded DNA pieces will…

Answered: PCR is a method used to amplify DNA.…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A professional employee in a large corporation receives an average of μ = 38.8 e-mails per day. Most of these e-mails are from other employees in the company. Because of the large number of e-mails, employees find themselves distracted and are unable to concentrate when they return to their tasks. In an effort to reduce distraction caused by such interruptions, one company established a priority list that all employees were to use before sending an e-mail. One month after the new priority list was put into place, a random sample of 39 employees showed that they were receiving an average of x = 31 e-mails per day. The computer server through which the e-mails are routed showed that σ = 15.4. Has the new policy had any effect? Use a 5% level of significance to test the claim that there has been a change (either way) in the average number of e-mails received per day per employee. What are the null and alternate hypotheses? Question 8 options: H0 : μ ≠ 38.8 e-mails; H1 : μ…
Jim Mead is a veterinarian who visits a Vermont farm to examine prize bulls. In order to examine a bull, Jim first gives the animal a tranquilizer shot. The effect of the shot is supposed to last an average of 65 minutes, and it usually does. However, Jim sometimes gets chased out of the pasture by a bull that recovers too soon, and other times he becomes worried about prize bulls that take too long to recover. By reading journals, Jim has found that the tranquilizer should have a mean duration time of 65 minutes, with a standard deviation of 15 minutes. A random sample of 8 of Jim's bulls had a mean tranquilized duration time of close to 65 minutes but a standard deviation of 26 minutes. At the 1% level of significance, is Jim justified in the claim that the variance is larger than that stated in his journal? Find a 95% confidence interval for the population standard deviation. (a) What is the level of significance?State the null and alternate hypotheses. Ho: σ2 = 225; H1: σ2 ≠ 225Ho:…
Air pollutants common in U.S. cities include fine particulate matter (PM) and ozone (O3). PM is measured as “inhalable” particles 10 micrometers in diameter or “fine inhalable” particles 2.5 micrometers in diameter. Suppose that studies show, for a particular region, that cities exceed PM2.5 standards 20% of the time and exceed ozone standards 10% of the time. Assume that PM2.5 and ozone measurements are statistically independent. A) Determine the probability that a city, selected at random, exceeds one of the standards. B) If a city exceeds the standards, what is the probability that it exceeds only the PM2.5 standard?
Due to your outstanding HELL80 skills, you have been hired by the Umbrella Corporation to calculate the next T-Virus zombie outbreak. According to the Corporation’s data, on day 1, zombie 0 can bite and infect 3 people. On day 2, there will be 4 zombies who again can bite and infect 3 people each. How many zombies will there be after 10 days? (Discrete math)
Fruit flies have built-in circadian rhythms that keep time in the absence of external stimuli. Several genes have been shown to be involved in internal timekeeping, including per (period) and tim (timeless). Mutations in these two genes, and in other genes, disrupt timekeeping abilities. Interestingly, these genes have also been shown to be involved in other time-related behavior. Individuals that carry particular mutations of per and tim have been shown to copulate for longer than individuals that have neither mutation. The following table summarizes some data on the duration of copulation for flies that carry either the per mutation or the tim mutation: Mutation Mean copulation duration (min) Standard deviation Sample size per 17.5 3.37 14 tim 19.9 2.47 17 Do the populations carrying these mutations have different variances in copulation durations? Carry out the appropriate test using α =0:05 Do these two mutations lead to different mean…
Surgery and germs. Joseph Lister (for whom Listerineis named!) was a British physician who was interestedin the role of bacteria in human infections. He suspectedthat germs were involved in transmitting infection, so hetried using carbolic acid as an operating room disinfectant.In 75 amputations, he used carbolic acid 40 times. Of the40 amputations using carbolic acid, 34 of the patientslived. Of the 35 amputations without carbolic acid,19 patients lived. The question of interest is whethercarbolic acid is effective in increasing the chances ofsurviving an amputation.a) What kind of a study is this?b) What do you conclude? Support your conclusion bytesting an appropriate hypothesis.c) What reservations do you have about the design ofthe study?
Write the full design matrix for a 2^5 experiment in Yates standard order explaining in detail each step jn the process.
A sports physiologist is investigating whether water or Gatorade provides the best hydration for athletes after training. A sample of 50 athletes between the ages of 18 and 30 was selected. On two consecutive days, each athlete ran 5 miles at a steady rate on a treadmill in a 75-degree room. On one of these days, 32 ounces of water was consumed after running. On the other day, 32 ounces of Gatorade was consumed after running. For each athlete, which beverage was consumed first was randomized. Hydration one hour after beverage consumption was measured, and results for the two beverages were compared. Which of the following is the best description of this study? (A) An experiment using a completely randomized design (B) An experiment using a matched-pairs design (C) An observational study using a simple random sample (D) An observational study using a cluster sample (E) An observational study using a stratified sample
The answer I was given was incorrect
Salma is studying the growth of a particular type of plant. She is testing the effects of four growth factors: lighting, age, temperature, and humidity. Here are the levels she's testing for each. Levels None, Low, Medium, High, Very high 1 month, 2 months, 3 months 20 °C, 22 °C, 24 °C Low, Medium, High She wants to find the number of ways of combining one level from each of the growth factors. How many ways are there? 0 Growth factor Lighting Age Temperature Humidity x
Alaska's Katmai National Park celebrates fat bear week every year in the beginning of October, when brown bears are getting ready to go into hibernation. During the fat bear week, the public votes on bears to advance in the bracket through single-elimination rounds. Adult male bears regularly weigh around and even over 1000 pounds for their peak fall weights, while adult female bears generally weigh 1/3 less than the males. Suppose the weights of all ready-to-hibernate brown bears in the national park are distributed as shown in the following histogram. Weights of Bears 10 200 400 600 800 1000 1200 Weight in pounds The mean of all the peak fall bear weights is 695 pounds, and the standard deviation is 279 pounds, For a random sample of 30 bears, what is the probability of obtaining a sample mean less than 720 pounds? If the conditions to perform the necessary calculation are not satisfied, enter -1" instead. Give your answer accurate to four digits beyond the decimal point. Answer.…
Yoko is studying the growth of a particular type of plant. She is testing the effects of four growth factors: lighting, age, temperature, and humidity. Here are the levels she's testing for each. Growth factor Levels Lighting None, Low, Medium, High, Very high Age 1 month, 2 months, 3 months, 4 months, 5 months, 6 months Temperature 20 °C, 22 °C Humidity Low, Medium, High She wants to find the number of ways of combining one level from each of the growth factors. How many ways are there?

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