TLS Online TPP Program

#Id: 8961

#Unit 11. Evolution and Behavior

No matter how it is born, a new gene starts its life as a single copy in the population.

As with any new mutation, by far the most likely outcome is that it will be lost by random drift or selection over the next few generations

TLS Online TPP Program

#Id: 9194

#Unit 11. Evolution and Behavior

Hitchhiking

An important consequence of linkage disequilibrium is hitchhiking. This happens when an allele at  one locus spreads by natural selection acting on a second locus that is in linkage disequilibrium with  the first.

TLS Online TPP Program

#Id: 9977

#Unit 4. Cell Communication and Cell Signaling

Unphosphorylated β-catenin translocates to the nucleus.

TLS Online TPP Program

#Id: 7439

#Unit 5. Developmental Biology

Fruiting structure consists of a tapered column of stalk cells that carries a spherical mass of spores aloft.

TLS Online TPP Program

#Id: 7760

#Unit 1. Molecules and their Interaction Relevant to Biology

Sulfur normally exists as an eight-atom molecule, S8, while phosphorus exists as a four-atom molecule, P4