Chemistry, 14.09.2019 01:10 rafamoreura
Natural selection is such a powerful force in evolution because cells with even a small proliferation advantage quickly outgrow their competitors. to illustrate this process, consider a cell culture that contains 1 million bacterial cells that double every 20 minutes. a single cell in this culture acquires a mutation that allows it to divide faster, with a generation time of only 15 minutes. assuming that there i: s an unlimited food supply and no cell death, how long would it take before the progeny of the mutated cell became predominant in the culture? (before you go through the calculation, make a guess: do you think it would take about a day, a week, a month, or a year? ) how many cells of either type are present in the culture at this time? (the number of cells n in the culture at time t is described by the equation n no x 2t/g, where no is the number of cells at zero time and g is the generation time.)
Answers: 1
Chemistry, 22.06.2019 12:30
A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml
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Chemistry, 22.06.2019 19:50
If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?
Answers: 2
Chemistry, 22.06.2019 22:20
Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?
Answers: 2
Natural selection is such a powerful force in evolution because cells with even a small proliferatio...
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