266 



J. K. BREITENBECHER. 



22 separate pairs, totaled 422 heterozygous, spotted (Mm) 

 females and 412 heterozygous, spotted (Mm) males. This proves 

 that the macula trait, spotted males and females, is dominant to 

 the normal character, non-spotted males and spotted females. 

 Complete data for this test is tabulated in Table I. 



TABLE I. 



Pi: i MM female, homozygous for spotted males and females X i mm 



homozygous for non-spotted males and spotted females. 

 Fi: Offspring: 



male, 



TABLE II. 



RECIPROCAL CROSS. 



Pi: i mm female, homozygous for non-spotted males and spotted females X I 



MM male, homozygous for spotted males and females. 

 Fi: Offspring: 



