scrunching model -proposes that DNA downstream from the stationary, promoter-bound, polymerase is unwound and pulled into the enzyme. The DNA thus accumulated within the enzyme is accommodated as single-stranded bulges.

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#Id: 9857

#Unit 6. System Physiology – Plant

phot1 is the primary phototropic receptor mediates phototropism in response to low and high fluence rates of blue light. 

phot2 mediates phototropism in response to high light intensities

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#Id: 2551

#Unit 13. Methods in Biology

5′ nuclease assay (TaqMan assay). PCR is undertaken with a fluorescence reporter/quencher pair (called RQ probe). 

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#Id: 2644

#Unit 13. Methods in Biology

A variation on the run-off theme of quantifying accurate transcription in vitro is the G-less cassette assay.

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#Id: 8614

#Unit 2. Cellular Organization

Two inhibitory phosphorylations on CDK play a critical role in controlling CDK activity:

Y15

T14

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#Id: 3999

#Unit 2. Cellular Organization

Interphase chromatin remain attached to nuclear wall proteins via matrix attachment regions (MARs) or matrix attachment DNA sequences.