Eight-cell stage
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The eight-cell stage is a period in embryonic development when the conceptus has undergone three cleavages from a single cell, resulting in eight cells. In some mammals, it is at this stage of development that the individual cells begin to adhere tightly, a process called compaction.[1] A single cell can be removed from a pre-compaction 8 cell embryo and used for genetic screening.[2]
[edit] References
- ^ Nikas G, Ao A, Winston RM, Handyside AH (July 1996). "Compaction and surface polarity in the human embryo in vitro" (pdf). Biol. Reprod. 55 (1): 32–7. PMID 8793055. http://www.biolreprod.org/cgi/reprint/55/1/32.pdf.
- ^ "Preimplantation genetic diagnosis and chromosome analysis of blastomeres using comparative genomic hybridization". Hum. Reprod. Update 11 (1): 33–41. 2005. doi:10.1093/humupd/dmh050. PMID 15569702.
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