| 11. | It's not that scientists believe a genetic change is all bad.
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| 12. | Another genetic change caused the kernels to stick more tightly to the cob.
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| 13. | The rapidity of genetic change may help explain several puzzles in human evolution.
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| 14. | Genetic changes can occur at different levels and by different mechanisms.
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| 15. | It warns about new pollutants that may cause cancer or human genetic changes.
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| 16. | For example, adaptation to changing environmental conditions often causes relevant genetic changes during inbreeding.
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| 17. | The plot nearest Chernobyl underwent genetic changes hundreds of times more often than expected.
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| 18. | Of these three effects only genetic change brings about adaptation.
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| 19. | This is because at least two kinds of genetic changes must occur in cancers.
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| 20. | The first somatic treatment that produced a permanent genetic change was performed in 1993.
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