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Q: In a developing chicken embryom, what is the fate of the postanal gut?
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Endodermal Derivatives of the Developing Chick Embryo
(A) 33-hour Chick Embryo Transverse Sections
(B) 48-hour Chick Embryo Transverse Sections
(C) 72-hour Chick Embryo Transverse Sections
QUESTIONS:
- 1. What is the fate of the postanal gut?
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- Describe the movement of cells during early development that change an embryo from a blastula to a gastrula. Name the three main germ layers, describe their relative locations, and list the fates of the cells descended from each layer. What is the name and significance of the opening in the gastrula?In a developing chicken embryo, What is the fate of the post anal gut?''Because of the many later developmental trans-formations that produce the elaborately structured organs, the body plan set up during gastrulation bears little resemblance to the body plan in the adult.'' Explain why or why not.
- Endodermal Derivatives of the 10 mm Pig Embryo QUESTIONS (1) What is the double membrane separating the pharyngeal pouch and furrow? (2) What is the position of the first visceral arch in relation to the mesencephalon in your slide? (3) What is the fate of the postanal gut?In frogs, yolks are plugged into the bottom of the blastopore, which develops into the anus. How about in sea urchins? I know in sea urchins the blastopore will become an anus but is there also a yolk plug, or does the bottom of the archentron simply develop into the anus?Name a gene that will disrupt somitogenesis and describe its effects on formation of the axial skeleton?
- Ectodermal Derivatives of the Developing Chick Embryo A. 33-hour Chick Embryo Transverse Sections B. 48-hour Chick Embryo Transverse Sections C. 72-hour Chick Embryo Transverse Sections QUESTIONS: Name some derivatives of the neural What is the lamina terminalis?Endodermal Derivatives of the Developing Chick Embryo 33-hour Chick Embryo Transverse Sections 48-hour Chick Embryo Transverse Sections 72-hour Chick Embryo Transverse Sections QUESTIONS: (1) What is the double membrane separating the pharyngeal pouch and furrow? (2) What is the fate of the postanal gut? (3) What is the position of the first visceral arch in relation to the mesencephalon in your slide?Ectodermal Derivatives of the Developing Chick Embryo A. 33-hour Chick Embryo Transverse Sections B. 48-hour Chick Embryo Transverse Sections C. 72-hour Chick Embryo Transverse Sections QUESTIONS: Is the sulcus limitans present at the 72-hour stage? State the derivatives of the sacculus and