The accompanying diagram shows three gene duplication events that gave rise to a gene family consisting of four sequences X₁- X₄. A researcher sequences the genes in two related species and discovers that each species has two copies. One species has copies X₁ and X₂, and the other has copies X₃ and X₄. The sequence of X₁ is very close to that of X₂, and the sequence of X₃ is very close to that of X₄; however, the (X₁, X₂) pair is quite dissimilar from the (X₃, X₄) pair. The most likely interpretation of this pattern is that speciation took place in the interval labeled: D)None of the answer options is correct.

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The Answer of The accompanying diagram shows three gene duplication events that gave rise to a gene family consisting of four sequences X₁- X₄. A researcher sequences the genes in two related species and discovers that each species has two copies. One species has copies X₁ and X₂, and the other has copies X₃ and X₄. The sequence of X₁ is very close to that of X₂, and the sequence of X₃ is very close to that of X₄; however, the (X₁, X₂) pair is quite dissimilar from the (X₃, X₄) pair. The most likely interpretation of this pattern is that speciation took place in the interval labeled: D)None of the answer options is correct.

The Accompanying Diagram Shows Three Gene Duplication Events That Gave