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Study_questions_week-1_13

Based on the above information the evolution of

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28) Based on the above information the evolution of resistance of an insect to a pesticide will: a) Be slower when the pesticide is used every year b) Be faster when the pesticide is used every year c) Be faster when most farmers use the pesticide d) Be slower when most farmers use the pesticide e) Both answers (b) and (c) are correct
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29) New world-wide epidemics of influenza (pandemics) occur when: 30) The ‘HIV escape hypothesis’ predicts that: Two genotypes (A & B) of an annual asexual dandelion are blown by the wind to an isolated, windswept island. Genotypes A produces tall flowers and genotype B produces short flowers. An evolutionary biologist follows the fate of 100 seeds: Phenotype Spring seeds (year-1) Summer adult plants (year-1) Seeds per adult plant (year-1) Short 80 20 4 Tall 20 10 8 31): The population as a whole is: 32): The Darwinian fitness of genotype A is: a) 0.25 d) 40 b) 4.0 e) 80 c) 1.0 33): At the end of the Summer in year-1, the frequency of the B genotype in the genotype pool is:
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34): The best gene transport machine in this dandelion example is: 35): Fitness is determined by: 36) A pharmaceutical drug that binds to which molecule (making it unavailable to a virus) would prevent the HIV virus from entering a CD4 + helper T-cell a) Reverse transcriptase b) CD4 protein c) CCR5 protein cofactor d) Both answers b & c e) None of the above
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