To measure the activity of a promoter, one can link it to a reporter gene, such as the genes encoding b-galactosidase, CAT, or luciferase, and let 

the easily assayed reporter gene products indicate the activity of the promoter.

TLS Online TPP Program

#Id: 5851

#Unit 10. Ecological Principles

Succession is affected by the distance that dispersing organisms have to travel from undisturbed mainland areas. 

TLS Online TPP Program

#Id: 2866

#Unit 13. Methods in Biology

A very weak absorption maximum of phenylalanine occurs at 257 nm, tyrosine and tryptophan dominate the typical protein spectrum with their absorption maxima at 274nm and 280 nm, respectively.

TLS Online TPP Program

#Id: 2736

#Unit 13. Methods in Biology

The run-on reaction is usually done in the presence of labeled nucleotides so the products will be labeled.

TLS Online TPP Program

#Id: 5420

#Unit 7. System Physiology – Animal

Types of neurons Based on the number of processes that emanate from their cell body, neurons can be classified as unipolar, bipolar, and multipolar.

TLS Online TPP Program

#Id: 9386

#Unit 11. Evolution and Behavior