Prophase I mouse oocytes are deficient in the ability to respond to fertilization by decreasing membrane receptivity to sperm and establishing a membrane block to polyspermy.

Kryzak CA, Moraine MM, Kyle DD, Lee HJ, Robinson DN, Evans JP. Prophase I mouse oocytes are deficient in the ability to respond to fertilization by decreasing membrane receptivity to sperm and establishing a membrane block to polyspermy. Biol. Reprod. 2013; 89: 44, 1-13.