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TLS Online TPP Program

#Id: 8450

Right-handed helical conformation has 3.6 residues per turn with height of 5.4A

#Unit 1. Molecules and their Interaction Relevant to Biology #Conformation of proteins #Part B Pointers
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TLS Online TPP Program

#Id: 9573

#Unit 11. Evolution and Behavior

Eon > Era > Period > Epoch
TLS Online TPP Program

#Id: 9574

#Unit 11. Evolution and Behavior

Eon –  The longest portions of geologic time.
Hadeon, Archean, Proterozoic, and Phanerozoic.
TLS Online TPP Program

#Id: 9575

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 9576

#Unit 11. Evolution and Behavior

Pre Cambrian- Earliest eukaryotes and multicellular eukaryotes. Oxygen levels increase
TLS Online TPP Program

#Id: 9577

#Unit 11. Evolution and Behavior

Cambrian - Most marine invertebrates. Ozone layer forms
TLS Online TPP Program

#Id: 9578

#Unit 11. Evolution and Behavior

Ordovician - Primitive plants and fungi colonize land, first jawless vertebrates,  Mass extinction at end of period