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| 单词 | blastocyst biopsy |
| 释义 | blastocyst biopsyblastocyst biopsyA biopsy performed after the blastocyst differentiates into 2 morphologically distinct cell lines: the trophoblast and the inner cell mass of about 60 cells. Blastocyst-stage biopsy for pre-implantation genetic diagnosis is performed on day three of in vitro culture, which allows the developing TE to protrude after blastulation. |
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