BIO 1130 Lecture Notes - Lecture 8: Kinesin, Micronucleus, Motility

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Mitochondria endosymbiosis (one of the symbiotic organisms lives inside the other) of bacterial cells: what came first: nucleus or mitochondria, bacteria appeared right at the end of the. Archean eon: phagocytosis (pinching of bacterium to produce another bacterium) occurred however, one particular bacterium was unique because it was able to produce. Multiple chromosomes (linear) and diploidy (in pairs) variability random segregation: random segregation: mix of maternal/paternal chromosomes, crossing over creates lots of variation. Centrosomes (aka centrioles: structure that splits chromosomes apart to haploidy (in meiosis, spindle fibers direct construction of cytoskeleton of cell always perpendicular when divide, they go at opposite ends, microtubules. Molecular motors assist the movement of materials within a cell. *cell gliding 1st eukaryote cell glides across substrate and becomes flagella/cellia. Eukaryote cell (with plastid) consumes a new eukaryote cell (with plastid) result w/ an organelle inside that is a eukaryote cell w/ a prokaryote cell trapped in it from the primary endosymbiosis.