Black sand????

Plants!

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biocupid
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Black sand????

Post by biocupid » Sat Jun 16, 2007 11:43 am

There is an experiment which is carried out to test the effect of the auxins on the phototropism...i was curious why the stem of the plant is immersed into a beaker half containing fine black sand and a light bulb is set up at the right hand side of the room....pls explain...i am dying for the answer :)
Emi 4 Eva

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MrMistery
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Post by MrMistery » Sat Jun 16, 2007 11:58 am

probably to keep that region of the stem from being hit by light ;)
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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