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2010 AP Biology Free-Response Questions Free Download

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3）A new species of fly was discovered on an island in the South Pacific. Several different crosses were performed, each using 100 females and 100 males. The phenotypes of the parents and the resulting offspring were recorded.

Cross I: True-breeding bronze-eyed males were crossed with true-breeding red-eyed females. All the F1 offspring had bronze eyes. F1 flies were crossed, and the data for the resulting F2 flies are given in the table below.

Cross II: True-breeding normal-winged males were crossed with true-breeding stunted-winged females. All the F1 offspring had stunted wings. F1 flies were crossed, and the data for the resulting F2 flies are given in the table below.

Cross III: True-breeding bronze-eyed, stunted-winged males were crossed with true-breeding red-eyed, normal-winged females. All the F1 offspring had bronze eyes and stunted wings. The F1 flies were crossed with true-breeding red-eyed, normal-winged flies, and the results are shown in the table below.

1. What conclusions can be drawn from cross I and cross II? Explain how the data support your conclusions for each cross.
2. What conclusions can be drawn from the data from cross III? Explain how the data support your conclusions.
3. Identify and discuss TWO different factors that would affect whether the island’s fly population is in Hardy-Weinberg equilibrium for the traits above.

 

 

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2010 AP Biology (Form B) Free-Response Questions Free Download

2010 AP 生物(Form B)簡答題部分免費下載

此套題共計時1小時30分鐘

共4題

每道大題可能含有不同數量的小題

可以使用簡單的Four-function計算器（帶有開平方功能）

考試時會提供相應的方程和等式列表

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2010 AP Biology FRQ (Form B)真題題目

 

 

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