作者dente (尊敬但不畏惧～)
看板Biology
标题[问题] RNA pool? 神经传导问题
时间Thu Jan 26 18:10:12 2006
遇到一个问题
不知道是什麽意思
Suppose you wish to synthesize a pool of RNA moleculars that contain all four
bases at each of 40 positions. How much RNA must you have in grams if the pool
at least a single molecular of each sequence? The average molecular weight of
a nucleotide is 330 gram/mole.
是说64*40*330/亚佛加蕨数吗？
还有另一个问题
The fraction of open channels at 5mV increments at -45mV and ending at +5 mV
at 20度C is 0.02, 0.04, 0.09, 0.19, 0.37, 0.59, 0.78, 0.89, 0.95, 0.98 and
0.99.
A. At what voltage are half the channels open?
B. What is the value of the gating charge?
C. How much free energy is contributed by the movement of gating charge in the
transition from -45mV to +5mV?
这个就不懂在问什麽勒....
谢谢解答了...
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