Effect of light is Photomorphogenesis

 A decrease in the rate of stem elongation

The beginning of apical-hook straightening

The initiation of the synthesis of pigments

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#Id: 9799

#XL - R Botany

When Pr molecules are exposed to red light, most of them absorb it and are converted to Pfr, but some of the Pfr also absorbs the red light and is converted back to Pr because both Pr and Pfr absorb red light. 

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#Id: 8877

#XL - R Botany

The pool of active Cdc25C is created, that activates the large pool of cytosolic cyclin B-CDK1, which activates more cytosolic Cdc25C as part of positive feedback loop 1

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#Id: 8926

#XL - T Zoology

ATR activated by single-stranded DNA breaks.

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#Id: 9199

#XL - T Zoology

Directional Natural selection

Directional selection favors individuals at one extreme of a phenotypic distribution that have greater reproductive success in a particular environment.

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#Id: 9990

#XL - T Zoology

Rho GTPases are the “master builders” of the cell because they can activate an array of kinases and cytoskeletal binding proteins that remodel cytoskeletal elements to alter cell shape and movement