SSimUText 2017-2018 File Edit Go Tools Help n of Resistance10 11 Evolution for E
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Question
SSimUText 2017-2018 File Edit Go Tools Help n of Resistance10 11 Evolution for Ecology to Section 4 Managing the Evoo t eaoy Q4.10. Bollworms experience a trade-off between development time on normal cotton and survival on Bollgard cotton. Why is this trade-off important to the management of Bt-resistance? O Because this trade-off is the reason that Bt-resistance is ot heritible. Because without this trade-off, pink bollworms would have no need to become resistant to Bt-toxin. Because longer overall development time on Bollgard cotton means that individual pink bollworms develop resistance to Bt-toxin more slowly. Sho Because if Bt-resistant bollworms did just as well as susceptible bollworms on normal cotton, resistance would tend to evolve in any field containing even a small portion of Bollgard ine tivit ecti 04.11. Farmers growing Bollgard cotton should reserve some space in their fields for normal cotton because: Normal cotton!!?s:higher yield A refuge allows Btisusceptible bollworms to survive, thereby advantage of being er L reducing te nting on is the only wav tolfind out whetherExplanation / Answer
1. Because of longer overall development of Bollgard cotton means that individual pink bollworms develop resistance to Bt toxin more slowly
2.A refugee allows Bt-susceptible bollworms to survive therefore reducing the fitness advantage of being resistance
3. Exposure to DDT caused specific, random mutations to combat resistance
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