Monomeric G proteins are evolutionarily ancient, as evidenced by their widespread functions examples include: 

eIF2

EF1α and EF2

Ran

Sar

Rab

Rho, Rac, and Cdc42

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#Unit 10. Ecological Principles

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#Unit 10. Ecological Principles

Evenness is a measure of how diverse a community is relative to the maximum possible diversity

E=H_s/H_max

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#Unit 2. Cellular Organization

Consider 1000 bp DNA.

500 bp is sequence a, present in a single copy.

500 bp is sequence b (100 bp) repeated 5 times:

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#Unit 13. Methods in Biology

When the p-value is less than the level of significance (α), the null hypothesis is rejected. If the p-value so observed is not less than the significance level α, then theoretically null hypothesis is accepted.

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#Unit 7. System Physiology – Animal

Period of relaxation called diastole, during which the heart fills with blood A period of contraction called systole