Question

Identify the stages $A$ and $B$; and what is the correct labelling of $C$ and $D$?

Choose the correct option

	A	B	C	D
1	Morula	Blastocyst	Follicular cells	Inner cell mass
2	Morula	Blastocyst	Embryoblast	Tropho blast
3	Morula	Blastocyst	Trophoblast	Inner cell mass
4	Blastocyst	Morula	Trophoblast	Inner cell mass

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (C)

Blastomeres in the blastocyst are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.