SEX INHEEITANCE 



99 



and produces two functional sperm cells to one 

 functionless. In the honey bee the situation is 

 similar. The eggs usually give off two polar bodies 

 thus becoming haploid. If such an egg is fertilized 

 it produces a female (queen or worker), if un- 



a 



e 



Fig. 33A. — Spermatogenesis in tlic lioiicy Ix'c. '/, />, c, abortive first 

 spermatocyte division, d, e, /, (j, imperfect second spermatocyte division. 

 (After Meves.) 



fertilized it develops parthenogenetically into a 

 male, which is thus hai:)loid. In him tlie first sper- 

 matocyte division is abortive (Fig. 33, A, a-c), the 

 second is more complete, two nucleated cells result- 

 ing, but one of them is very small and does not 



