1. Adesnik, M., Salditt, M., Thomas, W., and Darnell, J. E. 1972. Evidence that all mRNA molecules (except histone mRNA) contain poly(A) sequences and that the poly(A) has a nuclear function. J. Mol. Biol.
71: 21–30.
2. Afzelius, B. A. 1956. The ultrastructure of the cortical granules and their products in the sea urchin egg as studied with the electron microscope. Exp. Cell Res.
30: 93–97.
3. Afzelius, B. A. 1972a. Reactions of the sea urchin oocyte to foreign spermatozoa. Exp. Cell Res.
72: 25–33.
4. Afzelius, B. A. 1972b. Ultrastructure of species-foreign spermatozoa after penetrating the sea urchin oocyte. Acta Embryol. Exp.
1972: 123–133.
5. Aketa, K., Bianchetti, R., Marri, É., and Monroy, A. 1964. Hexose monophosphate level as a limiting factor for respiration in unfertilized sea urchin eggs. Biochim. Biophys. Acta
86: 211–215.