Mendel's genes were only hypothetical entities, factors that could be inferred to exist in order to explain his results.
Transcripts of seven and eight genes were strongly enhanced or induced in shoots and roots, respectively, while two genes were only induced in roots under heat stress.
The results indicated that these two genes were only expressed in the browning explants which were cultured in vitro for 3 days.
By the time he got to Brussels for the second round, he was able to demonstrate their existence--but the genes were only present in multicellular animals.
All trees showed clear separation between the four major CaCA families: CAX, NCX, NCKX and CCX (Additional file 4: Figure S2), but YRBG genes were only clearly separated in the core domain tree (Fig. 1).
Mice deficient for all three genes were only obtained at 25% of the expected frequencies.
In some cases, genes were only differentially expressed at one temperature.
To exclude mechanistical effects, genes were only selected when they were regulated by siRNA A1, and not by a control siRNA (p-value <0.01).
59 genes were methylated in both RL and CD19+ B-cells; 1,817 and 164 genes were only methylated in either RL or CD19+ B-cells, respectively.
Accordingly, the typical target genes were only weakly expressed, toxins which are regulated by agr and sae, and clfA which is regulated by sigB [10], [38].
The recO and recN genes were only found in Rickettsia spp. In M. leprae, the recA gene and the recB, C, D complex were absent.
