During tetrapod embryonic development, what is the function of the apical ectodermal ridge (AER)?

+1 vote

The AER acts as the organizer of the cell, producing a signal that is sent to the zone of polarizing activity (ZPA) to induce formation of the head and tail.

The AER directs limb-bud outgrowth by responding to signals from the zone of polarizing activity (ZPA).

The AER induces apoptosis in lateral limb buds to ensure the formation of only four limbs.

The AER is responsible for anterior-posterior axis patterning and directs the formation of the head and tail regions of the tetrapod.

 

asked Jun 21, 2013 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

1 Answer

0 votes
 
Best answer
The AER directs limb-bud outgrowth by responding to signals from the zone of polarizing activity (ZPA).

 

answered Jun 21, 2013 by GeneX ~Top Expert~ (7,947 points)



...