The progenitor cell that is closest to the anchor cell:
A)receives the largest dose of EGF.
B)activates genes for differentiation into a type 1 cell.
C)prevents the adjacent cells from differentiating into a type 1 cell.
D)induces the adjacent cells to differentiate into type 2 cells.
E)All of these choices are correct.

Question

Quizplus · Accepted Answer

The progenitor cell closest to the anchor cell receives the largest dose of EGF, activates genes for differentiation into a type 1 cell, prevents adjacent cells from differentiating into a type 1 cell, and induces adjacent cells to differentiate into type 2 cells. This is a classic example of lateral inhibition and cell signaling in developmental biology, where the proximity to a signaling source (the anchor cell) determines the fate of progenitor cells.

The Progenitor Cell That Is Closest to the Anchor Cell