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प्रश्न
In implantation, which of the following burrows into the endometrium?
विकल्प
Zygote
Blastocyst
Gastrula
Morula
MCQ
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उत्तर
Blastocyst
Explanation:
During implantation, the blastocyst burrows into the endometrium by secreting enzymes that digest the uterine lining, allowing it to embed itself securely. Other stages like zygote, morula, and gastrula do not burrow into the endometrium; only the blastocyst does this to initiate pregnancy.
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