Ignoramus30282 <[email protected]> wrote: > http://news.independent.co.uk/environment/article337253.ece [...] > She found that 36 per cent of the young of the rats fed the modified > soya were severely underweight, compared to 6 per cent of the > offspring of the other groups. More alarmingly, a staggering 55.6 per > cent of those born to mothers on the GM diet perished within three > weeks of birth, compared to 9 per cent of the offspring of those fed > normal soya, and 6.8 per cent of the young of those given no soya at > all. I found the table with the data from the experiment. The table is in Russian (http://www.pcr-rus.com/article.html). Although the sample sizes were moderate 44, 45, 33, the second column says that these three groups were the offspring of only 4 (no soy), 4 (GM soy), and 3 (non-GM soy) rats (i.e. 11 rats split into 3 groups gave birth in total). Thus, these results are likely to be accounted for by the variation in maternal and genetic effects resulted from the very small pool of mothers. In population genetics, this is referred to as the effect of genetic drift. The smaller is the population of breeders, the larger are the deviations in various trait values in the offspring, due to the random sampling of breeders. I wouldn't get too excited about these results yet.