Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

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

ID: 254827 • Letter: C

Question

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.