Tom Goddard
June 9, 2010
Demo for Celsius and Beyond summer camp
No microscope is powerful enough to see the DNA helix, so we look at models.
Watson & Crick model made from metal rods, 1953. |
A dream "home" computer imagined in 1950 when DNA structure solved. Molecular visualization was 20 years in the future. |
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Today molecule models are usually viewed on computers.
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DNA in cells is wrapped around a spool (PDB 1AOI) called a nucleosome.
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DNA spools are stacked to make filaments.
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Electron microscopy -- fly chromosome tomography.
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Show virus paper strip RNA, explain human DNA paper strip would fill entire room tightly packed.