Arm and legs buds appear at about 28 days from
A) the coelom.
B) apical ectodermal ridges.
C) somitomeres.
D) neural crest cells.

Name: Arm and legs buds appear at about 28 days from A) the coelom. B) apical ectodermal ridges. C) somitomeres. D) neural crest cells.
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Question

Quizplus · Accepted Answer

Arm and leg buds appear from the apical ectodermal ridges, which are thickened areas of ectoderm at the limb bud sites, guiding the outgrowth and patterning of the vertebrate limb.

Arm and Legs Buds Appear at About 28 Days from