Responder, 

the cell or tissue being induced.

Cells of the responding tissue must have both 

A receptor protein for the inducing factor

The ability to respond to the signal

TLS Online TPP Program

#Id: 3511

#Unit 2. Cellular Organization

Introns may more freely accumulate point substitutions and other changes due to no selection pressure.  Introns evolve or accumulate mutations/changes much more rapidly than exons

TLS Online TPP Program

#Id: 9544

#Unit 11. Evolution and Behavior

Just as muscles become strengthened by work, more strongly exercised organs attract and become enlarged by the “nervous fluid.” 

Acquired during an individual’s lifetime, are inherited—a principle called inheritance of acquired characteristics.

TLS Online TPP Program

#Id: 2493

#Unit 13. Methods in Biology

The band-sharpening effect relies on the fact that negatively charged glycinate ions (in the electrophoresis buffer) have a lower electrophoretic mobility than do the protein–SDS complexes, which, in turn, have lower mobility than the chloride ions (Cl − ) of the loading buffer and the stacking gel buffer. 

[Cl−] > [protein–SDS] > [glycinate].

TLS Online TPP Program

#Id: 6870

#Unit 3. Fundamental Processes

Rap1 recruits Sir4 on acetylated histones, then recruits both its binding partner Sir3 and the HDAC Sir2. 

Sir3 and Sir4 then interact directly with histones H3 and H4. Once Sir3 and Sir4 have bound to histones H3 and H4, 

Sir2 deacetylates histones

Sir2-dependent deacetylation represses transcription.

TLS Online TPP Program

#Id: 324

#Unit 1. Molecules and their Interaction Relevant to Biology