If antibodies that neutralize fibronectin are incubated with an embryo through which neural crest cells are migrating, what happens?
A)Neural crest cell movements are inhibited.
B)Neural crest cell movements are excited.
C)Neural crest cells die.
D)Neural crest cells divide.
E)Neural crest cells convert into muscle cells.

Question

Quizplus · Accepted Answer

Fibronectin is an extracellular matrix molecule that provides a substrate for migrating neural crest cells. Antibodies that neutralize fibronectin would prevent neural crest cells from adhering to and moving along the substrate, leading to inhibition of neural crest cell movements.

If Antibodies That Neutralize Fibronectin Are Incubated with an Embryo