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BIO 110, Life Science

BIO 110, Life Science. Summer 2012. Readings. Text Chapter 21: review again p. 318: plant multicellularity p. 329: fungus multicellularity pp. 338-339: animal multicellularity p. 562-568: human development (incl. stem cells) p. 613-616: plant growth. Structure and function revisited.

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BIO 110, Life Science

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  1. BIO 110, Life Science Summer 2012

  2. Readings • Text • Chapter 21: review again • p. 318: plant multicellularity • p. 329: fungus multicellularity • pp. 338-339: animal multicellularity • p. 562-568: human development (incl. stem cells) • p. 613-616: plant growth

  3. Structure and function revisited • Division of labor: why every cell doesn’t do everything • What is an organ? • An example of constraints: circulation in mammals and seed plants

  4. Differentiation • Cells have to stick together • Specialization for function • Formation of tissues • Dedifferentiation, totipotency, and stem cells

  5. Origins of multicellularity • Animals • Blastulas, cell layers, cell movement and adhesion • Plants • Intercellular connections • Meristems and parenchyma • Fungi • Multinucleate filaments, plectenchyma • Crosswalls for nucleus control

  6. Making copies • Cellular reproduction • Mitosis • Different roles in unicellular and multicellular organisms • Multicellular reproduction • Clonal reproduction • Sex (but more later)

  7. DNA: the instruction manual • Basic structure • Replication • Genes and not-genes • A template for proteins • A template for active RNA • Regulating other DNA

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