The Apical Ectodermal Ridge

question 28

Multiple Choice

The apical ectodermal ridge

• A)forms at the proximal end of each limb bud.
• B)plays a role in differentiation and elongation of the limb.
• C)ossifies prior to formation of the hand and foot plates.
• D)must undergo apoptosis before the limb can develop.
• E)secretes mesoderm for muscle formation.

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