Q.1
Identify the corect sequence in cleavage
A. Motula formation
B. Compaction
C. Blastulation
D. Zona hatching
E. Blastocyst elongation
Choose the most appropriate answes from the optons given below
- Pre-Implantation Embryonic Development:
- Morula Formation (A): Cleavage divisions produce a solid spherical ball of $16 - 32$ blastomeres.
- Compaction (B): Blastomeres flatten and form tight intercellular junctions, creating distinct inner and outer cell populations.
- Blastulation (C): Fluid accumulation forms a blastocoel cavity, distinguishing the inner cell mass (embryoblast) and trophoblast.
- Zona Hatching (D): The blastocyst sheds the surrounding non-cellular zona pellucida envelope.
- Blastocyst Elongation (E): In domestic ruminants and pigs, the hatched spherical blastocyst elongates into a filamentous conceptus.
- Sequence:
- nalysis:
- (A, B, C, D, E): Correct chronological order.
Correct option: (1) A,B,C,D.E
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