Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Population dynamics that depend linearly on demographic composition. Three co-cultures of cells of type x (square, yellow) and cells of type y (round, blue) are prepared with different initial population compositions: (a) almost exclusively composed of cell type x, (b) 50/50 mixture of both cell types and (c) almost exclusively composed of cell type y. The factors by which each subpopulation then expands are also varied. (Online version in colour.)
