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Biology 311C Lecture 9

Biology 311C Lecture 9 - Biology 311C Lecture 9 Use online...

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September 14, 2011 Biology 311C Lecture 9 Use online modules to study for exam. Take notes from book. **Try to do goals from learning outcome guideline. Do the tests at the end of each section and chapter in book. Do Mastering Biology activities and tests. Nucleotides get added at the 3’ end of the DNA strand. When there is a hydroxyl group, a dehydration reaction may occur. In RNA, the A complimentary acid is A, not T. **Make a chart that compares the structure and function of DNA and RNA. By 4.5 billion years ago, the Earth and the other plants in the Solar system had formed. Outgassing and volcanic activity produced the primordial atmosphere of the Earth. Chemical evolution: simple organic molecules from inorganic precursors. Certain chemical are successful and more like to stick around and evolve later. Perhaps an extraterrestrial origin of organic molecules? On September 28 th , 1969, near the town of Murchison, Australia, a bright fireball was observed.
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