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Developmental Biology and Stem Cells: Introduction to Reproductive System

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Developmental Biology and Stem Cells: Introduction to Reproductive System

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Questions and Answers

What direction does the primitive streak establish in the embryo?

Caudal-cranial direction (correct)

Rostral-caudal direction

Left-right direction

Dorsal-ventral direction

During which process does the formation of a trilaminar embryo occur?

Somite formation

Gastrulation (correct)

Neurulation

Primitive streak formation

What is the result of the proliferation and migration of cells from the epiblast to the median of the embryonic disc?

Formation of notochord

Neurulation

Formation of somites

Primitive streak formation (correct)

During which stage does the formation of the notochord occur?

Gastrulation (B) Signup and view all the answers

What is the role of Hensen's node in the embryo?

Formation of neural ectoderm (A) Signup and view all the answers

What is the correct sequence of embryonic development?

Primitive streak formation -> Gastrulation -> Neurulation (B) Signup and view all the answers

What is the result of the elongation of the primitive streak?

Addition of cells to its caudal end (B) Signup and view all the answers

During which stage does the formation of somites occur?

Trilaminar embryo formation (D) Signup and view all the answers

What is the importance of the primitive streak in the embryo?

Establishment of caudal-cranial direction (A) Signup and view all the answers

What is the relationship between the trilaminar embryo and somite formation?

Trilaminar embryo formation occurs before somite formation (A) Signup and view all the answers