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When two lineages split from a common ancestor, each accumulates different mutations over long periods of time. The number of mutations is proportional to the length of time that the two groups have been genetically separate. A scientist studies corresponding genes in two species. Which data would be most useful for determining the time when the split from the common ancestor occurred

User Ptkoz
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Answer:

# of mutations in the exons

Step-by-step explanation:

User Mateuszlewko
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