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R1. Name structure and germ layer origin A: Somites and Mesoderm - PowerPoint PPT Presentation


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R1. Name structure and germ layer origin A: Somites and Mesoderm. R2. Name structure and germ layer origin A: Optic Cup and Ectoderm. R3. What is this structure and what stage of development are we at A: Structure is the yolk sac and we are at the Blastula stage.

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slide1

R1. Name structure and germ layer origin

A: Somites and Mesoderm

R2. Name structure and germ layer origin

A: Optic Cup and Ectoderm

R3. What is this structure and what stage of development are we at

A: Structure is the yolk sac and we are at the Blastula stage.

slide2

R4. Name process which allows ectoderm of zebra fish to pass over yolk sac during gastrulation

A: Epiboly

R5. Name germ layer origin for this tissue

A: Ectoderm. This is pointing at the epidermis of the embryo

R6. What specific tissue leads to the formation of this body structure.

A: Looking for Neural Crest cells here. Ectoderm would get partial credit since that is the correct germ layer.

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R7. What is this called?

A: Primative streak

R8. What is the name of the entire structure shown here? Hint: It’s not embryo

A: Neural Plate

R9. Name structure and germ layer origin

A: Optic Cup and Ectoderm (geesh another Eye one…I should have made this difficult)