2. To arrange these forms with certainty according to 



their generations. 



3. To ascertain accurately their statistical relations." 



(From Mendel's original Paper.) 



(b) — Dominant and Recessive Characters 



Experiments go to show that the Mendelian laws of 

 inheritance apply to a great many characters, but domin- 

 ance is not considered now an essential feature. 



Castle gives the following list of dominant and re- 

 recessive characters: — 



DOMINANT RECESSIVE 



CATTLE : 



Black Yellow 



Polled Horned 



Dexter form (short legs) Kerry form (legs normal) 



Dominance uncertain or variable — 

 White Colored 



Uniformly colored Spotted with white 



Uniformly black Black spotted with yellow 



HORSES: 



Bay Not bay (i.e.black or chest- 



nut). 



Black Chestnut. 



Gray. Not gray (any color but 



gray). 



Trotting. Pacing. 



Dominance uncertain or wanting — 

 Uniformly colored. Spotted with white 



SWINEi : 



Wild color. Not wild color (black or red) . 



Black. Red. 



Self white. Colored. 



Mule-footed (syndactyly) Normal foot. 



Dominance uncertain or wanting — 

 Uniformly colored Spotted with whi e. 



SHEEP: 



White fleece. Black fleece. 



(1) — See also Journal of Heredity, Vol. VIII, No. 8. 



91 



