VII 



DOMINANCE 



69 



and coloured birds in the expected ratio. There seems, 

 therefore, Httle reason to doubt that tlie dominant 

 white is a coloured bird in which tlie absence of 

 colour is due to the action of a colour-inhibitin 



rr 



I-n;. I.}. - 



Kais of beardless ami bcank-il wlieat. Ihi: heanllcss cuiulitioii is liominanl 



to lite heanlcd. 



factor, thoui^h as to the nature of that factor we can 

 at present make no surmise. 



Experiments with plants may often, as we have 

 already seen, throw liL,dU u[)()ii the heredity of animals, 

 and the converse is equally true. The inhibitor in 

 poultry has its counterpart in wheat. Some early 



