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1. What did Fredrick Griffith observe when he injected mice with live R bacteria and heat-killed S bacteria"
He observed that when he injected S bacteria, it killed the mouse. When he injected the R bacteria into the mouse, it didn't kill the mouse. When he injected heat-killed S bacteria, it didn't kill the mouse. When he injected R bacteria plus heat-killed S bacteria it killed the mouse.
2. How did Oswald Avery's experiment supply evidence that DNA, and not protein, is not the genetic material"
His experiment supplied evidence that DNA is not the genetic material by showing that the activity of the material responsible for transformation was not affected by protein-destroying enzymes, but was destroyed when a DNA-destroying enzyme was present.
3. How did Alfred Hershey and Martha Chase alter the molecular structure of bactiophage T2 in their experiments? For what purpose did they use a kitchen blender...
This section contains 878 words (approx. 3 pages at 300 words per page) |
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