GYNANDROMORPHISM 



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entering sperm should fail to reach the egg nucleus 

 before it divides, it may then fuse with one of the 

 halves of the egg nucleus after that divides. From the 



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Fig. 82. — Two gyiiandromorphs of Drosophila ampelophila. Upper 

 left-hand figure, female dorsally, male ventrally (as seen in third figure, 

 lower line). Upper right-hand figure, male on left side, female on right, 

 and correspondingly the under side shows the same difference (lower row, 

 last figure to right. Lower row from left to right; normal female, normal 

 male, vertical gynandromorph and lateral gynandromorph. 



half of the egg containing the double nuclei female 

 structures will develop ; from the other half, contain- 

 ing the half number of chromosomes, male structures 

 (Fig. 83, A). Here we have a very simple explanation 

 of the gynandromorphism. 



