Human Reproduction Question 435
Question: During the development of embryo which of the following occur first [AFMC 1995]
Options:
A) Differentiation of tissue
B) Differentiation of cells
C) Differentiation of organs
D) Differentiation of organ system
Show Answer
Answer:
Correct Answer: B
Solution:
Blastula differentiate into various regions and cells (blastomeres) of a particular region form a particular part of adult body, hence these areas are called presumptive areas and at this stage if cells of a particular area are removed the adult lacks a particular part from its body.