The size of this run-off transcript locates the transcription start site, and the amount of this transcript reflects the efficiency of transcription. 

TLS Online TPP Program

#Id: 9469

#Unit 4. Cell Communication and Cell Signaling

IL-2 receptor complex activates

STATs 1, 3, and 5 but not STATs 2 or 4

TLS Online TPP Program

#Id: 911

#Unit 13. Methods in Biology

The more metabolically active cells that are present in the culture, the more formazan will be generated, and so this assay provides a readout of the number of live cells as a function of time.

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#Id: 6631

#Unit 8. Inheritance Biology

Recombination frequencies Recombination frequencies can be used to determine the order of the genes on a chromosome and calculate the approximate distances from one gene to another.

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#Id: 451

#Unit 2. Cellular Organization

Nucleosomes that contain linker H1 histones are referred to as chromatosomes.

TLS Online TPP Program

#Id: 2259

#Unit 11. Evolution and Behavior

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