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Next time…

Next time…. Monday – final! Wednesday – extra credit trip! Meet 15 minutes after class start At the fish-hatchery parking lot in Whatcom Falls Park http://maps.google.com/maps/ms?msid=201491510676723487725.0004b2f839043211b4b92&msa=0&ll=48.751213,-122.428773&spn=0.000966,0.001644.

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Next time…

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  1. Next time… • Monday – final! • Wednesday – extra credit trip! • Meet 15 minutes after class start • At the fish-hatchery parking lot in Whatcom Falls Park http://maps.google.com/maps/ms?msid=201491510676723487725.0004b2f839043211b4b92&msa=0&ll=48.751213,-122.428773&spn=0.000966,0.001644

  2. Epigenetics • One more note on how information is passed between generations • An eye cell has the same DNA as a liver cell • Some DNA in each cell is packed away, not expressed

  3. Epigenetics • DNA can be partially packed away too • The cell does this by methylating the DNA • Adding CH3 groups • This methylation of DNA can be passed between generations

  4. Epigenetics • Example: • Arabidopsis • Stressed mother produced offspring who responded to stress for several generations even though they were ok

  5. Epigenetics • http://www.pbs.org/wgbh/nova/body/epigenetics.html

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