Frequency-dependent selection,

1.    Positive frequency

2.    Negative frequency

TLS Online TPP Program

#Id: 1014

#Unit 5. Developmental Biology

A fruit fly’s sex is determined predominantly by the number of X chromosomes in each cell.

TLS Online TPP Program

#Id: 2796

#Unit 13. Methods in Biology

The number of theoretical plates in the whole column of length L is equal to L divided by the plate height:

TLS Online TPP Program

#Id: 8405

#Unit 2. Cellular Organization

Muscle contraction depends on two processes that consume enormous amounts of ATP: 

1. Filament sliding, driven by the ATPase of the myosin

2. Ca2+ pumping, driven by the Ca2+ ATPase

TLS Online TPP Program

#Id: 107

#Unit 5. Developmental Biology

A cell is determined to a given fate if it maintains its developmental maturation toward this cell type even when placed in a new environment (commitment is irreversible).

TLS Online TPP Program

#Id: 3811

#Unit 5. Developmental Biology

Chemotaxis of Dictyostelium myxamoebae is a result of spiral waves of cAMP.