The zona pellucida mediates sperm binding at fertilization, provides a post-fertilization block to polyspermy, and facilitates passage of pre-implantation embryos down the oviduct.
Rankin TL, et al. Human ZP3 restores fertility in Zp3 null mice without affecting order-specific sperm binding. Development 125: 2415-2424, 1998. PubMed: 9609824
Hay, R. J., Caputo, J. L., and Macy, M. L., Eds. (1992), ATCC Quality Control Methods for Cell Lines. 2nd edition, Published by ATCC.
Caputo, J. L., Biosafety procedures in cell culture. J. Tissue Culture Methods 11:223-227, 1988.
Fleming, D.O., Richardson, J. H., Tulis, J.J. and Vesley, D., (1995) Laboratory Safety: Principles and Practice. Second edition, ASM press, Washington, DC.
Biosafety in Microbiological and Biomedical Laboratories, 5th ed. HHS. U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Washington DC: U.S. Government Printing Office; 2007. The entire text is available online.