Some of the important theories concerning the activation of egg by sperm are as follows: 1. Bataillon's Theory 2. Sensitization to Calcium Theory 3. Loeb's Theory 4. Lillie's Theory 5. Repressor Theory of Activation. 1. Bataillon's Theory: Bataillon (1910, 11, 12 and 16) suggested that the exudation or the excretion of substances into the perivitelline space and elevation of the [...]
In this article we will discuss about:- 1. Definition of Fertilization 2. Prerequisite of Fertilization 3. State of Gametes 4. Events 5. Activation 6. Significance 7. Parthenogenesis. Contents: Definition of Fertilization Prerequisite of Fertilization State of Gametes before Fertilization Events in Fertilization Activation of Fertilization Significance of Fertilization Parthenogenesis and Fertilization 1. Definition of Fertilization: Fertilization is the process which [...]
Read this article to get information about The Process and Significance of Fertilization! Five Stages of the Process of Fertilization (1) Encounter of spermatozoa and ova. (2) Capacitation and contact. (3) Acrosome reaction and penetration. (4) Activation of Ovum. (5) Migration of pronuclei and amphimixis. Image Courtesy : knowledgeserver.files.wordpress.com/2012/08/fertilization.jpg [I] Encounter of Spermatozoa and Ova: A major problem [...]
