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Discuss why is the skin on worms, the gills in fish, and the lungs in humans good epithelial surfaces for respiration. Be specific.The component is DNA. The stock concentration is 10mg/ml and the final concentration/amount is 25ug. What is the volume for 1 reaction? For 5 reactions?
A certain instant camera determines the distance to subject by sending out a sound wave and measuring the time required for the wave echo to return to the camera. How long could it take the sound wave to return to the camera if the subject were 2.68 ..
A reaction has been developed to be carried out in the 5 ml total volume. It need a final glycine concentration of 20 µM. If the protocol enables 200µl for glycine addition, state the amount of the concentration would you make up the stock solutio..
Which solute(s) were able to pass through 20 MWCO membrane? In accordance with your results, which solute had the highest molecular weight?
A student, who has not learned properly how to prepare solutions, added 25.7 g of sucrose to exactly 150.0 mL of dH2O and assumed that a 0.5 M solution had been prepared. The total solution volume increased to 168.0 ml after sucrose was dissolved and..
assume that the Nernst potential (across a neurons plasma membrane) for Mg(2+) is a 100+ mv. Calculate the fold concentration gradient for magnesium and explain in which direction it lies across the membrane (more on the inside or outside of the c..
In a series of experiments, genes that code for mutant forms of a receptor tyrosine kinase are introduced into cells. The cells also express their own normal form of the receptor from their normal gene.
Two intracellular molecules A and B are continually synthesised at a constant rate of 1000 per molecule per cell. Each molecule of A survives an average of 100 seconds. While each molecule of B survives an average of 10 seconds.
Water is most dense and therefore heavier at 4 degrees Centigrade. At zero degrees Centigrade ice forms and can float on liquid water. Assume ice were most dense at zero degrees Centigrade. Select the best explanation of what would happen in aquatic ..
The rhythmic contractions of digestive system which pass the food through system are known as ______. The chemical formed by the pancreas which helps to neutralize the contents of intestine is known as ______.
Write down a detailed lab report on Separation and detection of proteins. Your report must include Title, Introduction, Materials and methods and three references for this report.
The supernatant from normal cells corrects the defects in B and C, but not defect in A. Hurler's disease is as a result of the failure to make one particular lysosomal enzyme. The supernatant from A corrects the defect in Hurler's cells, but supernat..
This rise is proportional to the starting concentration of sucrose in the solution. A metabolic poison that blocks the ability of cells to regenerate ATP is found to inhibit the pH changes in the solution. Recommend a hypothesis accounting for these ..
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