Passage:
For several decades, scholars analyzing Bronze Age Eurasian population dynamics relied almost exclusively on strontium isotope analysis of human dental enamel, an analytical framework that infers geographic mobility by matching isotopic ratios in bone to localized geological baselines. While early proponents heralded strontium profiling as an objective empirical counterweight to speculative archaeological typologies, recent bioarchaeology has exposed structural limitations in the methodology. Specifically, diagenetic contamination and localized variations in dietary soil intake can skew strontium signatures, causing sedentary individuals consuming imported grain to appear deceptively mobile, or conversely, masking long-distance migration among populations reliant on uniform maritime diets.
In response to these diagnostic vulnerabilities, a new cadre of geneticists has championed high-throughput ancient DNA (aDNA) sequencing as a definitive replacement for isotopic provenance markers. Proponents of this genomic turn contend that genome-wide single nucleotide polymorphism (SNP) array data provides an unadulterated lineage trajectory, rendering biogeochemical proxies obsolete. Yet, this totalizing dismissal of isotopic data is uncomfortably premature. Although genomic sequencing unequivocally elucidates deep ancestral affiliations across millennial timescales, it remains remarkably insensitive to short-range, single-generation geographic movements that leave no immediate genetic trace in local gene pools. A micro-regional pastoralist seasonal migration, for instance, escapes genomic detection entirely if intermarriage does not occur. Thus, while genomic methods undeniably refine our understanding of macro-scale population shifts, discarding strontium analysis altogether ignores its unique capacity to capture non-reproductive physical transit within an individual's lifetime. A truly robust historical synthesis demands a calibrated integration of both methodologies rather than the uncritical substitution of one empirical paradigm for another.
Based on the passage, the author's stance toward the position held by the "new cadre of geneticists" is best described as which of the following?
- AUncompromising hostility toward their genomic framework, viewing it as an invalid substitute for traditional archaeological typologies.
- BUnqualified endorsement of their contention that genome-wide sequencing renders strontium isotope analysis entirely obsolete.
- Guarded recognition of their contributions to macro-scale analysis, combined with skepticism regarding their complete abandonment of isotopic data.Answer
- DActive approval of their capacity to capture short-range seasonal movements through single nucleotide polymorphism arrays.
- EIndifference toward their methodological claims, given that diagenetic contamination compromises both isotopic signatures and ancient DNA sequencing equally.