Chromosome Evolution

Fissions and fusion is the most common way for the number of chromosomes to change.

Humans have 23 pairs of chromosomes, but all of the other great apes have 24 pairs. At some point since our lineage split from that of chimpanzees, two chromosomes fused

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Myosins have 

Motor head domain

Lever-arm neck domain

Cargo-binding tail domain

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Myosin 

Actin-based motors powered by ATP hydrolysis.

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In Golgi complex

Arp2/3-dependent assembly of actin occur by an NPF WHAMM participating in membrane traffic from the ER to golgi

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On Endosomes 

Arp2/3-dependent nucleation of actin filament by An NPF is WASH