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TLS Online TPP Program

#Id: 9542

Chevalier de Lamarck

Different organisms originated separately by spontaneous generation from nonliving matter.

We now see a hierarchy of species because they differ in age

Species differ from one another because they have different needs.

#Unit 11. Evolution and Behavior #Emergence of evolutionary thoughts #Part B Pointers
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TLS Online TPP Program

#Id: 8904

#Unit 2. Cellular Organization
TLS Online TPP Program

#Id: 8905

#Unit 2. Cellular Organization

Most of the cohesins along the chromosome arms are removed from chromosomes during prophase, mediated by phosphorylation of cohesins by Plk1 & Aurora B kinase.
TLS Online TPP Program

#Id: 8906

#Unit 2. Cellular Organization
TLS Online TPP Program

#Id: 8907

#Unit 2. Cellular Organization

Centromere associated cohesins are specifically protected from phosphorylation dependent removal by protein phosphatase 2A
TLS Online TPP Program

#Id: 8908

#Unit 2. Cellular Organization

Phosphatase is recruited to centromeric by the Shugoshin family of proteins
TLS Online TPP Program

#Id: 8909

#Unit 2. Cellular Organization

Separase cleaves centromeric cohesin, triggering the onset of anaphase, releasing the sister chromatids