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Blob Size

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Suppose that you purify a viral DNA sample consisting of double-stranded DNA molecules of length 50,000 basepairs and suspended in salt solution. Using light scattering, you find that each molecule is a blob of diameter about 2 µm. Your lab partner prepares a DNA sample, in the same buffer solution, from some other organism; her DNA molecules are a hundred times longer. How big are the blobs in her sample?

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Solution Summary

This solution helps with a problem regarding blob size.

Solution provided by:
Anwesha Ghosh, MSc
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  • MSc, Osmania University
  • MSc, Indian Institute of Technology - Roorkee (I.I.T.-ROORKEE)
  • BSc, Banaras Hindu University
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