Question: Who used a sample of Czech individuals to determine the frequency of "Monigoloid" "mtDNA lineages"?
Sentence: In 2008, biochemist Boris Arkadievich Malyarchuk (Russian: Борис Аркадьевич Малярчук) et al. of the Institute of Biological Problems of the North, Russian Academy of Sciences, Magadan, Russia, used a sample (n=279) of Czech individuals to determine the frequency of "Mongoloid" "mtDNA lineages".
Answer in sentence: yes