120 SEX INHERITANCE 
and gave rise to the female parts of the gynander, 
while the other nucleus carried only the yellow 
white X and gave rise to the male parts of the 
gynander. 
Another gynander, shown in B, Fig. 36 G, started 
as an XX zygote that received the three characters 
cherry (recessive) abnormal-abdomen (dominant) 
and forked (recessive) from the mother, and ver- 
milion (recessive) from the father. The female 
parts show the dominant abnormal-abdomen. There 
was elimination of a daughter vermilion X-chro- 
mosome at the first, perhaps at the second nuclear 
division, so that the male parts show all three 
maternal characters cherry abnormal and forked. 
Both fore-legs were male (sex-combs and forked 
bristles); the right side of the thorax was male 
(smaller size, smaller bristles and hairs, forked 
bristles, smaller wing); the right side of the head 
was male (cherry eye-color, forked bristles, etc.), 
except for a tiny island of female tissue, red in 
color, in the rear margin of the eye. The abdomen 
was male on the right side as shown by the smaller 
size, the more extreme abnormality, and somewhat 
by the coloration. 
In other gynandromorphs the anterior parts may 
be female and the posterior male, or vice versa. 
Only one quadrant may be male and the rest female, 
or even smaller portions may be male, according to 
whether elimination occurs at an early or a later 
cleavage. Islands and streaks of one sex and the 
irregular dividing line sometimes seen in the head 
