Which one of the following significantly contributes to the specifici.pdf

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Which one of the following significantly contributes to the specificity of base pairing in double- stranded DNA, i.e., limits base pairing to cytosine-guanine (C:G) or adenine-thymine (A:T)? the right handedness of double-stranded DNA hydrogen bonding between bases base-stacking interactions the phosphodiester bonds between phosphate groups and deoxyribose sugar molecules Solution Answer: Base-stacking interactions Explanation: The purine and pyrimidine bases are hydrophobic and relatively insoluble in water at the near- neutral pH of the cell. At acidic or alkaline pH the bases become charged and their solubility in water increases. Hydrophobic stacking interactions in which two or more bases are positioned with the planes of their rings parallel (like a stack of coins) are one of two important modes of interaction between bases in nucleic acids. The stacking also involves a combination of van der Waals and dipole-dipole interactions between the bases. Base stacking helps to minimize contact of the bases with water, and base-stacking interactions are very important in stabilizing the three- dimensional structure of nucleic acids..

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A health program planning committee wants to address various health problems by developing programs for each health problem at all four levels of the public health pyramid. What would be some implications of this perspective on setting priorities and on the nature of the subsequent community health assessment? Solution The bottom tire consists of Infrastructure development: The most essential and set with high priority. As it affects a larger population .This includes development of basic infrastructures like electricity, sanitation, clean drinking water, hospitals, transportation and above all education. The second tire from bottom tire consists of Population based services: It includes public awareness programmes through print and television media for control of disease and prevention of population from getting affected. It is a less costly but has a greater impact on mass population. Healthier food and clean drinking water should be made available to all. It holds the second highest priority as it will decrease the chance of illness. The third tire from bottom consists of enabling services. It provides health education and promotion of health care products among a community. Immunization programmes and increasing awareness among population regarding the impact of hazardous chemicals on their health. Enforcement of laws if required for betterment of public health like avoid alcohol while driving, no smoking zones etc. It holds the third highest priority as prevention is better than cure. The top tire consists of direct health care: It includes availability clinical care for individuals affected and their proper treatment in due course of time. This applies to a smaller population but is also very essential for communities..

A health program planning committee wants to address various health .pdf

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Which of the following is true of a mainframe, or central, computer that you may find in an industrial application? It interfaces with manufacturing processes directly. It eliminates any need for system firmware. It does away with most applications software. It receives information from one or more workstations. Multiplexing is a means of in order to channel data. organizing the transmission of signals from many lines onto one line transmitting signals by changing their amplitude, frequency, or phase mixing and transmitting both synchronous and asynchronous signals simultaneously mixing and transmitting both analog and digital signals simultaneously The device shown isolates digital inputs and outputs from machinery grounds by emitting to a phototransistor. visible light X rays infrared sound The primary purpose of interface hardware in an industrial control system is to reduce the processor\'s overhead runtime. provide compatibility between synchronous and asynchronous transmissions. provide a communications link between the MPU and peripheral devices. connect the MPU to its internal registers. Solution 1) Which of the following is true of a mainframe, or central, computer that you may find in an industrial application? A. It inter,faces with manufacturing processes directly. B. It eliminates any need for system firmware. C. It does away with most applications software. D. It receives information from one or more workstations. Answer: A) It inter,faces with manufacturing processes directly. 2. Multiplexing is a means of----- in order to channel data. A. organizing the transmission of signals from many lines onto one line B. transmitting signals by changing their amplitude, frequency, or phase C. mixing and transmitting both synchronous and asynchronous signals simultaneously D. mixing and transmitting both analog and digital signals simultaneously Answer: A) organizing the transmission of signals from many lines onto one line. 4. The primary purpose of interface hardware in an industrial control system is to A. reduce the processor\'s overhead runtime. B. provide compatibility between synchronous and asynchronous transmissions. C. provide a communications link between the MPU and peripheral devices. D. connect the MPU to its internal registers. Answer: C) provide a communications link between the MPU and peripheral devices..

Which of the following is true of a mainframe, or central, computer t.pdf

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What type of security is there for a computer serverSolutionA.pdf

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Which of the following is an economic system where the major means of production are privately owned Mercantilism Monopoly Normative system engineering Capitalism Utilitarianism Mercantilism Monopoly Normative system engineering Capitalism Utilitarianism Solution Capitalism is a structure where mostly firms are owned and controlled by private individuals and there is no interference by the government. The motive of the firms is to earn more and more profits. Whereas in a socialist structure the firms are owned and controlled by the government and the main aim is welfare of the society and not to earn profits..

Which of the following is an economic system where the major means o.pdf

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Which of the following are affine properties (Which are preserved u.pdf

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What is a muno and what is a scintillation? What is a muno and what is a scintillation? Solution I suppose you were to ask about Muon and not Muno. To put it simply, Muons are sub-atomic particles, and do not consitute any other known particle, that is, they are fundamental particles. Muons are similar to electrons but heavier, in fact, 207 times heavier than electrons. Muons are fundamental particles, still very unfamiliar for the fact that they are radioactive and decay with an afterlife of 1.5 millionth of a second. Muons decay into an electron and two neutrinos as per: µ ---> e+ e + µ [muon ---> electron + electron antineutrino + muon neutrino] Scintillation refers to the flashes that appear on a scintillation counter whenever a particle passes through them. Scintillation counters exist for gamma, x-ray, beta, and alpha radiation. By the amount of Scintillation energy produced, we can predict the properties of the particles..

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A psychologist wishes to conduct a study on the effects of music deprivation on high school students. A high school class consists of the 30 students numbered in the list below. The researcher establishes a treatment group of 15 students who will have their portable music players replaced by experimental players that present the sound of water running. The control group of 15 students will all get regular portable music players, stuffed full of their favorite songs.Use the line of random numbers below to select the first 5 students to receive the treatment. What is the name of the fourth student selected? 59784 44312 15954 09233 00046 74318 02610 57396 16843 38454 00 Aaron 01 Buffy 02 Chandler 03 Cindy 04 Drusilla 05 Eric 06 Fallon 07 Graham 08 heather 09 Hsin-Chi 10 Ismail 11 Jasmine 12 Kiefer 13 Lucia 14 Monte 15 Naomi 16 Otis 17 Polly 18 Quincy 19 Rachael 20 Sarah 21 Stacy 22 Tasha 23 Tuan 24 Ukiah 25 Valerie 26 Wahib 27 Xavier 28 Yolanda 29 Zachary Solution The given random can be arranged in two digits numbers as follows: 59, 78, 44, 43, 12, 15, 95, 40, 92, 33, 00, 04, 67, 43, 18, 02, 61, 05, 73, 96, 16, 84, 33, 84, 54 Out of these we have to select the numbers that are between 00 and 29. Selected numbers are as follows: 12, 15, 00, 04, 18, 02, 05, 16, So the five first selected students are as follows: 12- Kiefer 15- Naomi 00- Aaron 04- Drusilla 18- Quincy ------------ The name of the fourth student selected is Drusilla..

A psychologist wishes to conduct a study on the effects of music dep.pdf

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This week you surveyed many different groups of living things. What Domain of living things is thought to have been the first form of life on Earth? Name one piece of evidence that exists for the claim that these were the earliest living things? Solution Archaea are found in the harshest environments on Earth, and are the oldest known organisms on Earth, appearing in the fossil record over 3.6 BILLION years ago Archaea display unique capacities, such as methanogenesis and survival at temperatures higher than 90 °C, that make them crucial for understanding the nature of the biota of early Earth..

This week you surveyed many different groups of living things. What D.pdf

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Urn I contains 9 yellow marbles and 7 brown marbles. Urn II contains 10 yellow marbles and 6 brown marbles. Urn III contains 7 yellow marbles and 11 brown marbles. The probability that Urn I will be selected is 0.42, th e probability that Urn II will be selected is 0.45, and the probability that Urn III will be selected i s 0.13. Find each probability: D. The probability that the marble selected was from Urn II, if it is known that the marble was yellow. Solution.

Urn I contains 9 yellow marbles and 7 brown marbles. Urn II contains.pdf

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The restriction enzyme EcoRI recognizes a 6 bp (palindromic) sequence. On average, how often would this enzyme cut a random sequence of DNA? How many times would the enzyme cut the E. coli genome? (The E. coli genome contains 4.6 x 106 bp). Solution There are 4 types of bases so the chances of each base to cut in the sequence is (1/4) (1/4) (1/4) (1/4) (1/4) (1/4)= (1/4)6 base pairs=1/4096. Now as the DNA sequence is completely random and we can expect that the enzyme may cut the DNA once every 4096 bases. Now the E.coli genome contains 4.6 x 106 base pairs of sequence. Then the cutting site will be in the whole E.coli genome is (4.6*106 /4096)= 1123 times..

The restriction enzyme EcoRI recognizes a 6 bp (palindromic) sequenc.pdf

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The vertical motion of a mass attached to a spring is described by t.pdf

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There are several types of bacterial toxins that are categorized as spreading factors. One of those is leukocidins. Do the 3 species of staphylococci you\'ve described produce leukocidins? What is their function? How do they work? Solution Leukocidins are toxins secreted by Staphylococcus aureus, Streptococcus pyogenes, and S. pneumoniae Among the three important Staphylococci, viz., S. aureus, S.epidermidis, and S.saprophiticus, leukocidins play a major role in the pathogenesis of S. aureus. Leukocidins are toxins that kill leukocytes (lit., Leuko: for leukocytes and caedo: killing) with or without lysis. In Streptococcus aureus, they attacks neutrophils, disrupt their membrane that leads to the release of the lysosomal contents, thereby, killing them..

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the life span of the general population. is the distribution uni.pdf

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A volume of 0.0125 m3 at a temperature of 1300C and pressure at 90kP.pdf

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Please help!!! I can change a link layer protocol and the application layer protocol does not need to know or be made aware of the change. Explain why? Solution Answer :- The protocols are like a pile of building blocks stacked one upon another. Because of this appearance, the structure is often called a stack or protocol stack. A layer does not define a single protocol it defines a data communications function that may be performed by any number of protocols. Therefore, each layer may contain multiple protocols, each providing a service suitable to the function of that layer. For example, a file transfer protocol and an electronic mail protocol both provide user services, and both are part of the Application Layer. 1) Application Layer :- The Application Layer is the level of the protocol hierarchy where user-accessed network processes reside. In this text, a TCP/IP application is any network process that occurs above the Transport Layer. This includes all of the processes that users directly interact with as well as other processes at this level that users are not necessarily aware of. 2) Presentation Layer :- For cooperating applications to exchange data, they must agree about how data is represented. In OSI, the Presentation Layer provides standard data presentation routines. This function is frequently handled within the applications in TCP/IP, though TCP/IP protocols such as XDR and MIME also perform this function. 3) Session Layer :- As with the Presentation Layer, the Session Layer is not identifiable as a separate layer in the TCP/IP protocol hierarchy. The OSI Session Layer manages the sessions (connections) between cooperating applications. In TCP/IP, this function largely occurs in the Transport Layer, and the term “session” is not used; instead, the terms “socket” and “port” are used to describe the path over which cooperating applications communicate. 4) Transport Layer: Much of our discussion of TCP/IP is directed to the protocols that occur in the Transport Layer. The Transport Layer in the OSI reference model guarantees that the receiver gets the data exactly as it was sent. In TCP/IP, this function is performed by the Transmission Control Protocol (TCP). However, TCP/IP offers a second Transport Layer service, User Datagram Protocol (UDP), that does not perform the end-to-end reliability checks. 5) Network Layer :- The Network Layer manages connections across the network and isolates the upper layer protocols from the details of the underlying network. The Internet Protocol (IP), which isolates the upper layers from the underlying network and handles the addressing and delivery of data, is usually described as TCP/IP’s Network Layer. 6) Data Link Layer :- The reliable delivery of data across the underlying physical network is handled by the Data Link Layer. TCP/IP rarely creates protocols in the Data Link Layer. Most RFCs that relate to the Data Link Layer discuss how IP can make use of existing data link protocols. 7) Physi.

Please help!!!I can change a link layer protocol and the applicati.pdf

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4. (a) Negate the statement Sarah has a spaceship and has three f.pdf

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Match the bones in column A with the features in column B. Place the letter of your choice in the space provided. (Some answers are used more than once.) a. Ethmoid bone b. Frontal bone c. Occipital bone d. Parietal bone e. Sphenoid bone f. Temporal bone Solution correct answers a) Ethmoid bone - 2) Cribriform plate b) Frontal lobe - 8) middle nosal concha c) Occipital bone - 5) foramen magnum d) Parietal bone - 1) form sagittal, coronal , squamous and lambdiod sutures e) Sphenoid bone - 10) Sella turcica f) Temporal bone - 11) Styloid process.

Match the bones in column A with the features in column B. Place the .pdf

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1. Prepare and analize the common statement for Anandam Manufacturing Company. Show all calculations. 2. Prepare and analize the cash flow statement for Anandam Manufacturing Company. Show all calculations. 3. Calculate the ratios based on case Exhibit 3. Show all calculations. Based on financial analysis of financial statements, would a loan officer grant a loan to Anandam financial company? EXHIBIT 3: INDUSTRY AVERAGE OF KEY RATIos Sector Average Ratio 2:301 Current ratio Acid test ratio (quick ratio) 120 Receivable tunover ratioimes turnover 52 days Receivable days Inventory turmover ratio Inventory days Long-term detttototal debt Debt-to-equity ratio Gross profit rato Net profit ratio Retun on equity Retum on total assets 4.85 times 75 days 24% 35% 40% 18% 22% 10% Total asset turnover ratio Ti Fixed asset turnover ratio Current asset tunover ratio3 interest coverage ratio (tmes 10 nterest earned Warking captal smover ratio Retu on ed sset Solution 1….Common -size Income statement 2012-13 % to Total sales 2013-14 % to Total sales 2014-15 % to Total sales Analysis of % to Total sales proportion Sales Cash 200 10.00% 480 10.00% 800 10.00% Credit 1800 90.00% 4320 90.00% 7200 90.00% Total Sales 2000 100.00% 4800 100.00% 8000 100.00% COGS 1240 62.00% 2832 59.00% 4800 60.00% COGS has reduced in the last 2 yrs. Gross profit 760 38.00% 1968 41.00% 3200 40.00% so, G/P has increased Operating Expenses: Gen.adm.& sell.exp. 80 4.00% 450 9.38% 1000 12.50% % to sales has doubled in 2013-14 & increased by more than 25% in 2014-15 Depreciation 100 5.00% 400 8.33% 660 8.25% Has increased by 3% in the last 2 yrs. Int.exp.(on borrowings) 60 3.00% 158 3.29% 340 4.25% Has slightly increased in 2014-15 Profit before tax(PBT) 520 26.00% 960 20.00% 1200 15.00% PBT% has reduced gradually in both the yrs.due to increase in all operating expenses esp.gen admn.& sell exp. Tax at 30% 156 7.80% 288 6.00% 360 4.50% Decrease % due to decrease in profit % Profit after tax(PAT) 364 18.20% 672 14.00% 840 10.50% PAT% has reduced gradually in both the yrs.due to increase in all operating expenses esp.gen admn.& sell exp. Common-size Balance Sheet Assets % to Total % to Total % to Total Fixed assets(net of dep) 1900 74.22% 2500 44.64% 4700 51.33% Assets have decreased to the total Current assets Cash & Cash equivalents 40 1.56% 100 1.79% 106 1.16% Slight variation in ratio to total Accounts Receivables 300 11.72% 1500 26.79% 2100 22.94% Has increased in 2013-14 & again decreased in 2014-15 Inventories 320 12.50% 1500 26.79% 2250 24.57% Has increased in 2013-14 & again decreased in 2014-15 Total 2560 100.00% 5600 100.00% 9156 100.00% Equity & Liabilities Equity share capital($ 10) 1200 46.88% 1600 28.57% 2000 21.84% Decreased steadily in all the 2 yrs. Reserves & surplus 364 14.22% 1036 18.50% 1876 20.49% Increased steadily in both 2 yrs.due to increase in $ net income in those yrs. Long-term borrowings 736 28.75% 1236 22.07% 2500 27.30% Decreased in 2013-14 & again increased i.

1. Prepare and analize the common statement for An.pdf

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Julia primarily uses her minivan transport her grandchildren, Vera, Chuck, and Dave, to and from school. She, 25/l00 bodily injury$50, 000 property damage coverage. Julia has a $50 deductible. Her driver-rating factor is 1.75. Her is classified as B, 12. What is Julia\'s annual premium? Solution you have deducted 50 twice.That is mistake as she has either collision deductible or comprehensive deductible.so it is to be summed only once..

Julia primarily uses her minivan transport her grandchildren, Vera, C.pdf

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