Hatching of Parthenogenic Blastotcysts.

Hatching of Parthenogenic Blastotcysts.
A. Early hatching of a blastocyst (Stage 8), the zona is cracked. B. Hatching of the blastocyst. The embryo has almost entirely shed the zona. C. Hatched blastocyst with empty zona. D. Hatched blastocyst by itself.

Misra AK (2005)