Density-dependent inhibition is explained by which of the following?
A) As cells become more numerous, they begin to squeeze against each other, restricting their size and ability to produce control factors.
B) As cells become more numerous, the cell surface proteins of one cell contact the adjoining cells and they stop dividing.
C) As cells become more numerous, the protein kinases they produce begin to compete with each other, such that the proteins produced by one cell essentially cancel those produced by its neighbor.
D) As cells become more numerous, more and more of them enter the S phase of the cell cycle.
E) As cells become more numerous, the level of waste products increases, eventually slowing down metabolism.
Eukaryotic Cells
Potential uses of stem cells
Prokaryotic vs. Eukaryotic cells
Embryonic and Induced Pluripotent Stem Cells & Lineage-specific Markers
ON and OFF Ganglion Cells
(a) Budding yeast cells (Candida albicans). (b) Mold from a penicillium fungus.