Implantation occurs at the stage of

Correct Answer: Blastocyst
Description: C i.e. Blastocyst- Barrier is provided by fusion / feilin (not Ach)Q. Fusion reduce the membrane potential of ovum that prevents polyspermy by not allowing the others sperms to enter.- Morula is a 16 cell stage, surrounded by zona pellucida. Barrier is provided by fusiotVfetilin.QImplantation occurs at the stage of blasto cystQ.
Category: Anatomy
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