Molecules in the metal coating are excited and release secondary electrons that are focused onto a scintillation detector

TLS Online TPP Program

#Id: 4658

#Unit 13. Methods in Biology

CFSE labeling amount of fluorescence emitted is cut in half each time the cell divides.

TLS Online TPP Program

#Id: 185

#Unit 5. Developmental Biology

A morphogen specifies cells in a quantitative (“more or less”) manner.

TLS Online TPP Program

#Id: 9175

#Unit 11. Evolution and Behavior

Amount of change in allelic frequency due to migration

m= proportional of migratory individual in  recipient population

qI – frequency of allele in source population  

qII – frequency of allele in recipient population

TLS Online TPP Program

#Id: 4834

#Unit 13. Methods in Biology

A type I error is often called a false positive (an event that shows that a given condition is present when it is absent).

TLS Online TPP Program

#Id: 1043

#Unit 5. Developmental Biology

The positional information needed to construct a limb has to function in a three-dimensional coordinate system:

Proximal-distal axis

Anterior-posterior axis

Dorsal-ventral axis