The Qimmiq, an Arctic breed believed to date to before Europeans arrived in the Americas, descends from a precontact dog population. The Qimmiq carries a haplotype (a group of genetic variants inherited together from one parent) absent in European dogs but present in Northeast Asian dogs, supporting the idea that precontact breeds in the Americas descended from dogs that accompanied human migration into Asia during the last ice age. The Dixie dingo, a tan-coated breed native to the rural Gulf Coast of the United States, offers additional support: living individuals carry haplotype B217, part of a haplotype group unique to Northeast Asian dogs. Many other precontact breeds, such as Canada’s Tahltan bear dog, disappeared through interbreeding with dogs brought from Europe.
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Verbal·Information and Ideas·Command of Evidence
hardWhich finding, if true, would most directly undermine the underlined claim?
A
Haplotype B217 is present in dog remains recovered in Northeast Asia and dating to before the emergence of the Dixie dingo.
B
The Dixie dingo carries some genes that are also common in the remains of European dogs from before Europeans arrived in the Americas.
C
Several modern Northeast Asian breeds were imported to the Gulf Coast of the United States in the 1900s, and the Dixie dingo’s recent ancestry may include individuals from these breeds.
D
Haplotype B217 is present in precontact remains recovered from Arctic North America, where the Qimmiq originated, as well as in remains from other regions outside the Gulf Coast.