04Jan_1 - What are the levels at which we study life...

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Associations in each level of a hierarchy give the individual components new properties
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Fig. 1-4 The biosphere Communities Populations Organisms Ecosystems Organs and organ systems Cells Cell Organelles Atoms Molecules Tissues 10 µm 1 µm 50 µm
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Reductionism – The structure of DNA
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Reductionism – The structure of DNA Description of the double helix was one of the most important scientific works of the past 200 years
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The structure of DNA Description of the double helix was one of the most important scientific works of the past 200 years Description of the double helix is insufficient to understand how genes function in the nucleus
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Emergent properties– The role of a subset of DNA sequence in TB
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Biology – the study of life What are the levels at which we study life Biosphere Ecosystem Community Population Organism Organ system Organ SYSTEMS BIOLOGY REDUCTIONISM
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Biology – the study of life
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Unformatted text preview: What are the levels at which we study life Biosphere Ecosystem Community Population Organism Organ system Organ SYSTEMS BIOLOGY REDUCTIONISM 25 m Fig. 1-7 1 m Organelles Nucleus (contains DNA) Cytoplasm Membrane DNA (no nucleus) Membrane Eukaryotic cell Prokaryotic cell Fig. 1-8 Nuclei containing DNA Sperm cell Egg cell Fertilized egg with DNA from both parents Embryos cells with copies of inherited DNA Offspring with traits inherited from both parents Fig. 1-9 Fig. 1-10 Nucleus DNA Cell Nucleotide (a) DNA double helix (b) Single strand of DNA Central dogma of modern biology Biology the study of life Discovery Science: Biology the study of life Hypothesis-Based Science: Biology the study of life Hypothesis-Based Science: Central dogma of modern biology...
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04Jan_1 - What are the levels at which we study life...

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