Lecture 3: BIOC61

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University of Toronto Scarborough
Biological Sciences
Herbert Kronzucker

Lecture 3 Brisoclon5000 yearsWhite polar bear descended from the brown 70 or more are arthropods or its relatives have the greatest resilience to abiotic factorsrequire 2 molar to reproducearchea bateria not dangerous dont cause disease15002000 genesinvests all genes into survivingPicrophylus tolerant at PH 0MoniraNormal bacteria cause diseaseAble to spring back to life after prolonged periods of dormancy beans in Australia date palms 200 thousand years of dormancy germinated and come back to lifedespite many mutations and abiotic factors were still tolerantJohn Riscu Moss from Siberia permafrost40 000 years oldplaced in nutrient suits And recsucitated the moss moss was brought back to lifeInsects caught in amberCaught in resonance in pine tresWhen fed on they are found in resonanceInsects from 40 million years ago unable to revivebut able to obtain gut bacteria which were capble of survived when cultured on Petri dishes can use amber preserves and figure out what was in their gut systems find DNARNA and calculate how much evolution has occurredNew Mexico250 x106 yearsold250 million years
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