SOQ#12 - General Biology I Study Objective Questions 12 DNA...

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General Biology I Study Objective Questions # 12 DNA Structure Reading: Raven et.al., Chapter 14 1. The genetic material is stored in which cell organelle? What experimental evidence supports your assertion? The genetic material is stored in the nucleus. Hammerling Experiment - grafted stalks of different species of Acetabularia (algae) onto the foot of another species (containing nucleus). The cap that developed was dictated by the nucleus-containing foot rather than by the stalk 2. What is transformation? Which experiment proved this process? Transformation is the uptake of DNA directly from the environment; a natural process in some bacterial species. Griffith’s experiment proved this process. A mixture of heat-killed virulent and live nonvirulent bacteria produced pneumonia in the mice- indicating the genetic information for virulence was transferred from dead, virulent cells to live, nonvirulent cells, transforming them from non-virulent to virulent. 3. Is the hereditary material protein or nucleic acid? What experimental evidence supports this view? The hereditary material is NOT protein, but nucleic acid. Avery, MacLeod, and McCarty prepared a mixture of dead S Streptococcus and live R Streptococcus, removed 99.98% protein, despite removal of protein,
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