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Calculate the generation time when an exponentially growing cell population increases from 5 x 10^6 cells/ml to 5 x 10^8 cells/ml in 8h. Calculate the number of cells/ml in a sample after counting a total of 143 cells in 25 squares of a counting chamber.
Begin by distinguishing between osmosis and diffusion; how are they similar? In what ways are they different?how to utilize transport substances across the cell.
If the temperature is lowered, the original DNA strands can renature. In addition to the full double-stranded molecules, some molecules of the type shown here are seen when they are examined under electron microscope. How can you explain these str..
If the amount of cholesterol is increased in a region of the phospholipid bilayer and then a FRAP experiment is conducted in the same region of the bilayer, what do you think would be the result of the FRAP experiment? Explain in terms of fluoresc..
Compare the reactants, products, and energy yeilds of aerobic metabolism versus fermentation in human cells.
Determine what effect did the agricultural revolution have on the growth of the human population?
How long would it take one starting Ecoli cell growing at a constant generation time (g) =20 mins (With a growth rate, k, of 3 hours) to generate an aggregate cell mass equal to the mass of the earth? Assume no nutrient limitation or growth inhibi..
The ability to taste PTC is due to a single dominant allele "T". You sampled 215 evolution students, and determined that 150 could detect the bitter taste of PTC and sixty-five could not.
Muscle cells, while an individual is exercising heavily and at what time the muscle becomes oxygen deprived, convert pyruvate to lactate. What happens to the lactate in skeletal muscle cells.
In humans the gene for right handedness is dominant to the gene for lefthandedness. A man and a women both heterzygous for this trait to marry. What percent of thier children.
Suppose a population evolving by genetic drift in which the frequency of allele K is 0.65. What is the probability that at some point in the future allele K will drift to a frequency of 1?
Such a condition is frequently accompanied by diarrhea, which causes a loss of body water. On the basis of what you have learned about osmotic water flows, describe why diarrhea may occur.
In this situation, you sampled gene pool without replacing beads in the beaker after you drew each one.
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