Biology / Bio 0993 · Capstone · 2–3 minutes
Tracing Genetic Variation from Prophase I Through Fertilization
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This capstone traces three independent sources of genetic variation, from one chromosome's internal shuffling through fertilization's combination of two parents' gametes.
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These three mechanisms are cumulative, not redundant — removing any one narrows the range of possible offspring, since each contributes variation the other two do not.