NCAMs,a group of cell-adhesion proteins belonging to the Ig superfamily:
A)are more heavily sialylated in embryonic tissues than in adult tissues.
B)bind to proteoglycans.
C)mediate Ca²⁺-dependent cell-to-cell binding.
D)all of the above

Question

Quizplus · Accepted Answer

NCAMs are indeed more heavily sialylated in embryonic tissues than in adult tissues, which suggests a role in development. They bind to proteoglycans and participate in Ca²⁺-dependent cell-to-cell binding. Thus, all three options are correct, making choice D the best answer.

NCAMs,a Group of Cell-Adhesion Proteins Belonging to the Ig Superfamily