| 1. | The follicle cells secrete "'Torso-like "'into the perivitelline space only at the poles.
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| 2. | He is also trying another approach, getting follicle cells to make their own VEGF.
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| 3. | These dorsal follicle cells are unable to produce the pipe protein required for step two.
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| 4. | The second step is a signal from the ventral follicle cells back to the oocyte.
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| 5. | The follicle cells change shape and synthetic properties to distinguish the dorsal side from the ventral side.
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| 6. | The sperm binds through the corona radiata, a layer of follicle cells on the outside of the secondary oocyte.
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| 7. | Because the dorsal follicle cells do not express " pipe, " they are not able to create this complex.
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| 8. | In a process that resembled ovulation, said Scholer, the oocytes were released by the follicle cells on day 26.
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| 9. | In setting up the compass points of the egg, the microtubules exchange signals with follicle cells that surround the egg.
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| 10. | This signal acts after the egg has left the follicle cells so this signal is stored in the perivitelline space.
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