The Biophysics of the Egg Surface of Echinus Esculentus During Fertilization and Cytolysis

When an egg is fertilized, well-defined morphological changes occur. In spite of this, physico-chemical differences between fertilized and unfertilized eggs have been difficult to find. Nor have the increases in permeability and metabolic rate found in certain eggs been shown to be of general incidence. Investigations of the electrical properties of eggs are few, and the results have been inconclusive and contradictory.