To further illustrate the effect, we first consider two genes whose correlation to somite stage is equally strong in both experimental groups: Nr2f1 (Figure 5B), encoding a nuclear transcription factor involved in forebrain development, displays positive correlation with increasing somite number in normal (coefficient of 0.734) as well as in diabetes-exposed embryo samples (coefficient of 0.744). The gene discussed is NR2F1; the disease is diabetes mellitus.