Question

Which of the following correctly lists the stages of human embryo development in order?

• A. Morula, Blastocyst, Gastrulation, Neurulation
• B. Blastocyst, Morula, Neurulation, Gastrulation
• C. Neurulation, Gastrulation, Morula, Blastocyst
• D. Gastrulation, Neurulation, Blastocyst, Morula

Hint:

Understanding the stages of embryonic development is fundamental in fields like developmental biology and medicine, as it provides insights into normal and abnormal growth patterns.

Answer 1

The Correct Option is A

The correct Option is : 1

Human embryonic development progresses through several well-defined stages: 

Morula: A solid ball of cells resulting from the division of a fertilized egg.

 Blastocyst: The morula develops a fluid-filled cavity, differentiating into the inner cell mass and the trophoblast. 

Gastrulation: Formation of the three germ layers (ectoderm, mesoderm, endoderm) begins. 

Neurulation: Development of the neural tube, which will eventually form the central nervous system. 

Sequence of Stages: \[ \text{Morula} \rightarrow \text{Blastocyst} \rightarrow \text{Gastrulation} \rightarrow \text{Neurulation} \] 

Conclusion: The correct order of human embryo development stages is Morula, Blastocyst, Gastrulation, and Neurulation.