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Nondisjunction
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AP Biology
APB.256 Nondisjunction
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A student predicts that if sister chromatids fail to separate during meiosis II, all four gametes must be abnormal. Which response best evaluates the prediction?
A
The prediction is correct because a meiosis II error happens before any gametes form.
B
The prediction is correct because sister chromatids exist in both homologs after fertilization.
C
The prediction is incorrect because the other meiosis II cell can still produce two normal gametes.
D
The prediction is incorrect because sister chromatid errors never change chromosome number.
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