MATURATION OF GAMETES 



127 



cell do not behave in the same way in each sex during gametic differentiation. 

 While the behaviors of the chromatin material in the male and female germ 

 cells closely parallel each other (fig. 67), the other cytosomal features follow 

 widely divergent pathways, resulting in two enormously different gametic 

 entities (fig. 68A-H). 



RED BLOOD 

 CORPUSCLE 



INTERSTITIAL 



CELL 



SPERM ATO- 

 G ON lU M 



LUMEN OF TUBULE 



Fig. 66. Section of part of a seminiferous tubule of human testis. (Redrawn from Gatenby 



and Beams, '35.) 



