Multiple-Choice Section Choose the one option that answers…
Multiple-Choice Section Choose the one option that answers each question 1-4. There is no partial credit for questions 1-4. You can change your answers to the multiple choice questions, but the Correct/Incorrect feedback for multiple choice questions will not be shown during the exams. You do not need to show or scan work for the multiple choice questions.
Read DetailsA DNA segment contains three reporter genes (red, yellow, cy…
A DNA segment contains three reporter genes (red, yellow, cyan), each flanked by unique, non-cross-reactive LoxP sites (black, gray, white). When Cre recombinase is activated, it randomly recombines matching LoxP sites, removing the intervening DNA. Based on this setup, determine for each of the following reporter gene combinations whether it could result (A) or could not result (B) from a single or series of such recombination events. Ignore the possibility of excised DNA reintegrating. Combination Can it occur? Red and yellow Red and cyan Yellow and cyan Cyan only Yellow only Red only
Read DetailsIf you are done with all of the problems (including multiple…
If you are done with all of the problems (including multiple choice) on this exam, please read this note before submitting your exam: SHOW YOUR WORK on free response problems to the camera before submitting your quiz. Now have your solutions to the free response problems ready to be scanned. YOU CAN SCAN YOUR PAPERS AFTER SUBMITTING YOUR TEST. Once you submit this Canvas assessment, please visit the CrowdMark link: https://app.crowdmark.com/student/assessments/exam-2-free-response-submission-4a0f8 (This link will be available on canvas module week-8, and will be emailed to your UC email.) You will only have 15 minutes to scan and submit your solutions. You should scan and upload after submitting the Canvas exam. Please be sure to upload work for all the free response questions in order to receive full credit. Points will be deducted for not submitting your written work. The work you submit has to be the same that is shown to the camera in order to get credit. Mark “True” below to show you have read the above instructions.
Read DetailsProblem 3 (35 Points – Pumping power calculation in piping s…
Problem 3 (35 Points – Pumping power calculation in piping systems). A pump delivers kerosene to an elevated reservoir 8 m higher than the storage tank at ground level, as shown in Figure P.3. The tubing system connected to the pump is 20 m in length and 8 cm in diameter. As depicted in Figure P.3, the tubing system has one reentrant entrance (KL = 1.05), two 90° smooth flanged bends (KL = 0.3 each), a 1/4th closed gate valve (KL = 0.3), and a sharp exit (KL = 1.05). The volumetric flow rate is 0.03 m3/s. Consider a pump efficiency of 70% and that the kerosene properties are: ρ = 804 kg/m3, and
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