Ch 11 Quiz- Requires Respondus LockDown Browser Started: Apr 4 at 8:42am Quiz In

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Ch 11 Quiz- Requires Respondus LockDown Browser Started: Apr 4 at 8:42am Quiz Instructions This quiz is now available for review until midnight tonight Dr. Haddad DQuestion 24 Mechanics of gastrulation initiation O Cells form dorsal marginal zone and the derivatives Cells of inner marginal zone elongate forward bottle ceils invaginate to torm blastopore, involuting mesodermal cells move toward anit pole forming archenteron o ?) Dorsal marginal zone (DMZ) gastrulation . Sclf differentiatc into dorsal mesoderm, dorsalize surrounding mesoderm into paraxial mesoderm instead of forming ventral mesoderm dorsalize ectoderm including neural tube formation, initiate movements of gastrulation. Nex 4 Previous ip

Explanation / Answer

Mechanics of gastrulation initiation:

B) Cells of inner marginal zone elongate forward, bottle cells invaginate to form blastopore, involuting mesodermal cells move toward animal pole forming archenteron.

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