2012 AP Biology生物真題系列之Practice Exam(May)選擇題免費(fèi)下載

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2012 AP Biology Practice Exam（May） Multiple Choice and Grid-In Questions Free Download

2012 AP 生物五月模考選擇題部分免費(fèi)下載

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8）An allele on the X chromosome is responsible for the recessive trait of red-green color blindness in humans. The daughter of a woman who is color-blind has normal vision and marries a man who is color-blind. This couple has a son, what is the probability that the son will be color-blind?

1. 0
2. 1/4
3. 1/2
4. 3/4
5. 1

15)Which of the following best describes the function of the coenzymes NAD+ and FAD in eukaryotic cellular respiration?

1. They participate in hydrolysis reactions by accepting protons from water molecules.
2. They participate directly in the phosphorylation of ADP to ATP.
3. They serve as final electron acceptors in the electron transport chain.
4. They aid vitamins such as niacin in the breakdown of glucose.
5. They accept electrons during oxidation-reduction reactions.

16)A group of people whose ancestors immigrated to North America 200 years ago have certain allele frequencies that differ significantly from those in surrounding populations in the United States. Which of the following is the most likely explanation for the difference in allele frequencies?

1. Mutation
2. Independent assortment
3. Reproductive isolation
4. Sex linkage
5. Gametic isolation

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2012 AP Biology Practice Exam Multiple Choice and Grid-In Questions Free Download

2012 AP 生物模考選擇題部分免費(fèi)下載

此套題共計(jì)時(shí)1小時(shí)30分鐘

共69題

可以使用簡單的Four-function計(jì)算器（帶有開平方功能）

考試時(shí)會提供相應(yīng)的方程和等式列表

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