Transcript copy numbers in non-expanded/expanded blastocysts in vitro and in vivo.

The table shows means and standard deviations (in brackets) from 3 (in vitro) or 2 (in vivo) biological replicates.°The copy number per intact cell was calculated by dividing the mean copy number per embryo by the mean number of intact cells (n = 128 for in vitro and n = 117 for in vivo embryos). Significance of differences was tested using the Mann-Whitney U test.n. d. = not detected or transcript copy numbers below the measurement limit.