| 1. | Matrilines are also said to influence caste determination within the species.
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| 2. | Caste determination in stingless bees is more variable than in honey bees.
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| 3. | Caste determination in Hymenoptera is either trophogenic or genetic.
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| 4. | Trophogenic caste determination is much more common; genetic caste determination is quite rare.
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| 5. | Trophogenic caste determination is much more common; genetic caste determination is quite rare.
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| 6. | A more promising explanation of caste determination involves a pheromone excreted by the current queen.
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| 7. | In genetic caste determination, an organism's caste is inherent in its genetics.
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| 8. | The 3 : 1 ratio of workers to gynes provides evidence of genetic caste determination.
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| 9. | It has also been found that caste determination is irreversibly determined by temperature during the immature stages of development.
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| 10. | This reproductive control or suppression has been recently credited to pre-imaginal caste determination via the mechanism of insemination.
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