We have viruses!! Tucson High School Biotechnology Course
Spring 2010
Slide 2
Results from Last Class Synechococcus Prochlorococcus
Slide 3
Results from Last Class: Controls Negative Control Positive
Control 10 4 dilution (higher concentration of viruses) Positive
Control 10 6 dilution (lower concentration of viruses
Slide 4
Results from Last Class: Tara Oceans Samples No Plaques: 11
Tara Samples Plaques!! 6 Tara Samples
Slide 5
Results from Tara Oceans
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Now What?? Pick Plaques! Yes! No! 3 l
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Whats Next? Generate many more viruses We need a lot! Each
virus: ~55 ag DNA (0.000000000000000055 g) We need: a few g
(0.000001 g) => 1.8 x 10 10 viruses (18000000000 viruses)
Slide 8
A reminder Overlays are NOT solid! **Do NOT tilt, shake,
jostle, or turn over your plates!**
