Bacteria
Campbell Biology Vocabulary Terms
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ALl Words_BIO-II CHAPTERS Chapter Word Definition 01 Animalia The kingdom that consists of multicellular eukaryotes that ingest their food. 01 Archaea One of two prokaryotic domains, the other being Bacteria. 01 Bacteria One of two prokaryotic domains, the other being Archaea. 01 bioinformatics Using computing power, software, and mathematical models to process and integrate biological information from large data sets. 01 biology The scientific study of life. 01 biosphere The entire portion of Earth inhabited by life; the sum of all the planet?s ecosystems. 01 cell Life?s fundamental unit of structure and function.
Chapter 4
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Summary
1. Life emerged on the earth through two phases of development: a chemical evolution of the organic molecules, biopolymers, and systems of chemical reactions to form the first cells and the biological evolution from single-celled prokaryotic bacteria to single-celled eukaryotic creatures, and then to multicellular organisms.
2. Evolution is the change in a population’s genetic makeup over time. Evolution forces adaptations to changes in environmental conditions in a population. The diversity of life on earth reflects the wide variety of adaptations necessary and suggests that environmental conditions have varied widely over the life of the earth.
Bacteria
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The different cycles in AP Biology
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DNA NOTES
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The Discovery of DNA Griffith and Transformation: Transformation: One strain of bacteria (harmless) had changed into disease-causing strain Meant gene with info was transferred from heat-killed into live cells Avery tried to break down the heat-killed bacteria with enzyme that would usually break up DNA, but it didn?t Avery concluded that DNA is nucleic acid that stores and transmits the genetic info from 1 generation to another Hershey and Chase Experiment: Studied bacteriophages (viruses) ?bacteria eaters? made of DNA/RNA and protein coat Bacteriophages inject DNA into bacteria, the viral genes act to produce many new bacteriophages and burst of out cell Conclusion: using radioactive markers, genetic material of bacteriophage was DNA not protein The Structure of DNA
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