A genetic propensity to be egotistical may have evolved or increased in frequency dramatically after the advent of religion.
Other dietary intake and genetic propensities probably account for the rest.
The condition is also common in other canine breeds that share a genetic propensity for light pigmentation.
And there are clearly a few echoes of the father in the son, especially the apparently genetic propensity to mangle the English language.
The tumors may have been caused by environmental factors or genetic propensity.
Evidence of family history may suggest a genetic propensity.
Dr. Wormser suggested that perhaps there was a genetic propensity toward contracting the disease.
The human mind being very versatile, however, any genetic propensities are far from decisive.
This genetic propensity is known to have arisen among cattle herders of northern Europe some 5,000 years ago.
There may be a genetic propensity to this problem, but that is not completely understood.