If Rac, a Rho protein family member GTP binding protein, promotes activation of
ID: 63493 • Letter: I
Question
If Rac, a Rho protein family member GTP binding protein, promotes activation of the Arp complex, how would a cell moving via activation of Rac appear compared to a cell moving via activation of CDC42, a member of the same family that promotes activation of actin bundling proteins?
the Rac cell will move via pseudopods and the CDC 42 cell will not move
the Rac cell will display flatter, broader leading edge than the CDC42 cell
the CDC42 cell will display a broader, flatter leading edge than the Rac cell
the CDC42 cell will move via pseudopods and the Rac cell will not move
a.the Rac cell will move via pseudopods and the CDC 42 cell will not move
b.the Rac cell will display flatter, broader leading edge than the CDC42 cell
c.the CDC42 cell will display a broader, flatter leading edge than the Rac cell
d.the CDC42 cell will move via pseudopods and the Rac cell will not move
Explanation / Answer
Answer C) the CDC 42 cell will display a broader flatter leading edge due to formation of filopodia while Rac cell will display only lamellipodia which give rise to filopodia