Lu / ^ M 





CONTENTS 

 GENERAL BIOLOGY OF EGGS 



Discovery . 



Role in Animal Economy . 



Life History 



Size 



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STRUCTURE AND FUNCTION IN MAMMALIAN 



EGGS 



Nucleus 



Oocyte Nucleus ...... 



Maturation ...... 



Pronuclear Growth and Development . 



Properties of Pronuclei ..... 



Anomalies of Pronuclei: Subnuclei — Rudimentary par- 

 thenogenesis — Gynogenesis and androgenesis — Aneu- 

 gamy — Polyandry and polygyny 



nucleocytoplasmic relations in fertilization . 



Cleavage Nuclei ...... 



Cytoplasm 



Physical Features : Yolk — Fine structure — Changes in 

 size and form ...... 



Chemical Components ..... 



Organelles : Mitochondria — Golgi material — Cortical 

 granules — Division apparatus — Components of the 

 spermatozoon ...... 



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mnono 



