Cells expressing either N-cadherin (A), high levels of E-cadherin (
B), or low levels of E-cadherin (
C) have sorted themselves out on a substratum in a cadherin-dependent manner as shown in the schematic drawing below. Which cells (A to
C) would you expect to correspond to white, gray, and black in the drawing, respectively? Your answer would be a three-letter string composed of letters A to C only, e.g. CAB.

Question

Cells expressing either N-cadherin (A), high levels of E-cadherin (
B), or low levels of E-cadherin (
C) have sorted themselves out on a substratum in a cadherin-dependent manner as shown in the schematic drawing below. Which cells (A to 
C) would you expect to correspond to white, gray, and black in the drawing, respectively? Your answer would be a three-letter string composed of letters A to C only, e.g. CAB.

Quizplus · Accepted Answer

Cells expressing N-cadherin (gray) sort out from cells expressing E-cadherin. Cells expressing high levels of E-cadherin (black) sort out from cells expressing low levels (white), which end up mostly at the periphery because of their weaker adhesion.

Cells Expressing Either N-Cadherin (A), High Levels of E-Cadherin (B)