Question

Match the following items of Column-I with that of Column-II:

• A. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
• B. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
• C. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
• D. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

Hint:

Remember: Trophoblast → outer layer, Inner cell mass → future embryo, Morula → 8–16 cells stage.

Answer 1

The Correct Option is A

Step 1: Trophoblast is the outer layer of the blastocyst → (a) → (iv)
Step 2: Implantation is the embedding of blastocyst into the endometrium → (b) → (i)
Step 3: Inner cell mass forms the embryo → (c) → (ii)
Step 4: Morula is an embryo stage with 8–16 blastomeres → (d) → (iii)