Defending the zygote: search for the ancestral animal block to polyspermy.

@article{Wong2006DefendingTZ,
  title={Defending the zygote: search for the ancestral animal block to polyspermy.},
  author={Julian L. Wong and Gary M Wessel},
  journal={Current topics in developmental biology},
  year={2006},
  volume={72},
  pages={1-151}
}
Fertilization is the union of a single sperm and an egg, an event that results in a diploid embryo. Animals use many mechanisms to achieve this ratio; the most prevalent involves physically blocking the fusion of subsequent sperm. Selective pressures to maintain monospermy have resulted in an elaboration of diverse egg and sperm structures. The processes employed for monospermy are as diverse as the animals that result from this process. Yet, the fundamental molecular requirements for… CONTINUE READING

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