Genetics of Sunrunners and Sorcerers
Special thanks to Anna for this list!
The faradhi gene is recessive; the diarmadhi gene is dominant. Simply put, think of the Sunrunner gene as being like that for blue eyes, and the sorcerer gene as similar to that for dark hair; they have nothing to do with each other genetically, but the combination---used perceptively---can be startling.
ff: full Sunrunner. Almost all are unable to cross water without becoming violently ill. All are vulnearable to death by iron while working.
fx: "halfling gift." Possible seasickness; in particularly strong bloodlines, an itchy feeling around the edges of consciousness when spell are being worked. Cannot be trained as a Sunrunner.
Dxx: full sorcerer. No difficulty crossing water; not as susceptible to iron; vulnerable to mirror spells. Can be trained as a Sunrunner, as can all with the diarmadhi gene; also, all with this gene who wear faradhi rings feel them burn in the presence of a sorcerer's working, but if they themselves are doing the spell, the rings only tremble a little as if in protest.
Dff: full sorcerer and full Sunrunner. Most cannot cross water comfortably.
Dfx: full sorcerer; halfling Sunrunner. Same as above, but vulnerable to mirrors.
xx: no "magical" genes at all. Susceptible under influence of dranath to a powerful mind's suggestions, especially diarmadh'im using a mirror.
Offspring of faradh'im
ff = fx ff; fx ff = xx fx fx = xx fx; xx fx = fx ff; fx; xxOffspring of diarmadh'im
Dxx = Dff Dfx Dxx = Dfx Dfx; Dxx Dff = Dfx Dff; Dfx Dxx = xx Dxx Dff = xx Dfx Dfx = xx Dfx; DxxOffspring of both
ff = Dxx Dfx ff = Dff Dff ff = Dfx Dff; Dfx fx = Dxx Dfx; Dxx fx = Dff Dff; Dfx fx = Dfx Dff; Dfx; Dxx