At what phase is the cell cycle arrested by an inhibitor? One potential medical treatment to stop cancer cell proliferation employs an inhibitor derived from human umbilical cord stem cells. In this exercise, you will compare two histograms to determine where in the cell cycle the inhibitor blocks the division of cancer cells. In the treated sample, human glioblastoma (brain cancer) cells were grown in tissue culture in the presence of inhibitor-producing umbilical cord stem cells. In contrast, control sample glioblastoma cells were grown in the absence of stem cells. To get a "snapshot" of the phase of the cell cycle each cell was in at the end of 72 hours, the cell samples were treated with a fluorescent chemical that binds to DNA. Next the samples were run through a flow cytometer, an instrument that records the fluorescence level of each cell. Computer software then graphed the number of cells in each sample with a particular fluorescence level.
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Biology, 22.06.2019 16:00
Why were the results whit just water so much different than the trials with the detergent ?
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Biology, 22.06.2019 16:00
You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars
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Biology, 22.06.2019 21:30
Agriffin is a mythical creature that appears in many stories. it has the head of an eagle and the body of a lion. what role if any could the griffin have in the science of biology
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Biology, 22.06.2019 22:00
Which of the following are causes of evolutionary change? 1)genetic drift 2) natural selection 3) gene flow 4)mutation
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At what phase is the cell cycle arrested by an inhibitor? One potential medical treatment to stop ca...
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