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生物 > 清华大学:《生物化学》课程PPT教学课件(英文版)Relationships of dna to mrNA to polypeptide chain
清华大学:《生物化学》课程PPT教学课件(英文版)Relationships of dna to mrNA to polypeptide chain
Gene mutation and evolution Gradual accumulation of mutations over long periods of time results in new biological species, each with a unique DNA sequence. Mutations and stabilization of mutations to new species. Charles Darwin: Unifying evolution theory-the origin of species from a common ancestor.
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Chloroplasts in a plant cell Chloroplast
Chloroplasts in a plant cell
Vacuoles
Vacuoles
Cytoplasmic organelle or vesicle Biological ATP ATP motors Kinesin ADP+PO Dynein U ADP+PoF--Dynein and 22 ni kinesin Microtubule Ca B) a, B-Tubulin dimer
Biological motors -- Dynein and kinesin
Cell 1 Cell 2 Plasma membrane (a)Tight junction Cytoplasm Cytoskeletal filaments ycoprotein filaments (b) Desmosome Extracellular Plasma membranes (c) Gap junction of two adjacent cells
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