The overall effect of migration is twofold: 

1.it prevents populations from becoming genetically different from one another, 

2.it increases genetic variation within populations.

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#Unit 8. Inheritance Biology

Marker position 

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#Unit 4. Cell Communication and Cell Signaling

In the basal state, 

GAPs inhibit RalA and Rab10 function by enhancing their rates of GTP hydrolysis

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#Unit 2. Cellular Organization

Knl1 eliminating checkpoint protein binding sites at kinetochores. p31comet disassembles the MCC, allowing APC/Ccdc20 to degrade mitotic cyclins and securin to trigger anaphase.

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#Unit 3. Fundamental Processes

replication fork is initiated at the origin and then moves sequentially along DNA

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#Unit 10. Ecological Principles

Standing crop, The biomass of producers present in a given area of an ecosystem at a particular moment in time.