Question

Arrange the major thematic events of xenopus gastrulation from early to late stage.
A. Epiboly of the ectoderm around the entire embryo.
B. Extension of the body along anterior-posterior axis.
C. Formation of bottle cells and internalisation of the endoderm and mesoderm.
D. Cortical rotation and formation of grey crescent.
Choose the correct answer from the options given below :

• A. A→B→C→D
• B. B→C→D→A
• C. C→A→D→B
• D. D→C→A→B

Answer 1

The Correct Option is D

The correct answer is (D) : D→C→A→B.