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Chromosome dyad in a 2-cell embryo

High power TEM of a chromosome dyad in a dividing stage 2, 2-cell embryo in vitro 34 hours post-insemination (original magnification x33,140).

From: Trounson and Sathananthan, 1984. Reproduced with permission of Plenum Publishing Corporation.

Keywords: chromosome dyad, stage 2 embryo, two-cell embryo

Source: The Virtual Human Embryo.