22 Tanaka. 



That is 



Class E 15 times out of 16 

 „ F once „ ,, 16. 



The actual results: 



Observed Calculated 

 Class E 4 3-75 



„ F^) 0-25. 



c) Subsequent generation to the plain yellow of Class A in an}* 

 generation further than Fo. 



3 nYnY X 3 nYnY 9 



Class G 3 nYnY X 1 nYny 3 



1 nYny X 3 nYnY 3 



15 



Class H 1 nYny X 1 »iFny 1. 



That is 



Class (t 15 times out of 16 

 „ H once „ „ 16. 



The observed cases: 



Observed Calculated 

 Class G 8 7-5 



„ H 0-5. 



Though the numbers are, as j^et, not sufficiently large, the expec- 

 tation in all of the three forms was fairly realised-). 



Gametic Series in Moricaud-Yellow Coupling. 



If the heterozygosis is produced by crossing of moricaud yellow 

 and normal or plain white parents, a coupling between moricaudness 

 and yellowness occurs, as I described in the previous paper^), in the 

 gametogenesis of the hybrid. 



More sufficient data on the moricaud-yellow coupling were obtained 

 in the spring of 1913. The Fo families, which are given below, were 



') Clags F occurred once as the grandchildren of Class F. (Cienealogical table I.) 



•) If the male gametic series is assumed as 1:2:2:1, the probability will be 



CI. A CI. B CI. C CI. D Ct. E CI. F Ct. G CI. H 



Normal yellow 16 99 2 — — — — 



white — — — — 8 1 — — 



Plain yellow — — — — — — 8 1. 



») Tanaka, 1913 b, 1. c. 



