Definition of "haplogroups" [haplogroups]

• Plural form of haplogroup. (noun)

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• "These can be used to classify male chromosomes into different groups called haplogroups which, to some extent, reflect a person's geographical ancestry."
• ""haplogroups," that tend to relate to geographical areas."
• "They call them haplogroups and haplotypes, which come back probabilities and percentages—and it works."