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.
Sieve-tube elements and companion cells in phloem tissue
Normal red blood cells.
The spongy bone in the top of the femur changes density and organization during growth.
White Blood Cells
Microarray procedure for analyzing gene expression in normal and cancer cells
Trichomes are hairs or other fine outgrowths of epidermal cells