Cortical changes in growing oocytes and in fertilized or pricked eggs of Rana pipiens.

@article{Kemp1967CorticalCI,
  title={Cortical changes in growing oocytes and in fertilized or pricked eggs of Rana pipiens.},
  author={Norman E. Kemp and Nancy L. Istock},
  journal={The Journal of cell biology},
  year={1967},
  volume={34 1},
  pages={111-22}
}
The folded cortex of the growing oocyte of the frog extends as microvilli into the substance of the developing vitelline membrane and, internal to the folds, possesses a layer of cortical granules. Free ribosomes, smooth-walled vesicles, coated vesicles, tubules, and electron-opaque granules are abundant in the peripheral zone of the cortex. Mitochondria, lipochondria, pigment granules, and electron-opaque granules are conspicuous between cortical granules and in the underlying endoplasm. Yolk… CONTINUE READING

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