However, instead, each of the relQTLs had at least one genotype that showed a positive, and one a negative, regression of the activity trait or traits on weight, so body weight showed overall independence at each of these loci.
The enzyme exhibited modified traits: the activity of the purified enzyme was reduced to 49%, the ratios of hydrolytic activities with cephalexin, phenylacetamide or 6-nitro-3-phenylacetylamidobenzoic acid (NIPAB) to penicillin G increased and the enzyme showed a better synthesis/hydrolysis ratio for the synthesis of cephalexin.
The particular interest of this case lies in the characteristics of mountain areas where, on the one hand, the traits of the pre-existing agricultural activities might encourage the development of multifunctional activities and, on the other hand, the link with the urban domain is perhaps weaker than elsewhere for geographical reasons.
Although some traits are controlled by the activity of a single gene, most traits are influenced by the activities of multiple genes.
The genotype-dependent nature of the regressions of the activity traits on body weight is illustrated in Figure 3 for three different QTLs.
This suggests that differential epistasis can account for the variation among the genotype-specific associations of the activity traits and body weight exhibited by the relQTLs (Additional file 4).
The three genotypes at each of these loci typically exhibited a combination of negative, zero, and positive regressions of the activity traits on body weight, the net effect of which was to produce overall independence of body weight from physical activity.
Underlying the categorical definition of ADHD are the quantitative traits of activity, impulsivity, and inattention which vary continuously in the population.
The personalities of Ed, Double Dee, and Eddy are based on his own traits, and the activities of his two sons while the cul-de-sac children and the Kanker sisters were all based on children he grew up with.
All such QTLs collectively contribute to the phenotypic values and variability of the activity and weight traits, suggesting a complex genetic basis for these traits.
Impaired communication, the temperamental traits of emotionality and activity and aggressive behaviour did not achieve statistical significance in the adjusted analysis.
