Claim: The Mexico City Prospective Study sequenced the genomes of nearly 150,000 adults, revealing complex admixture patterns and medically significant genetic variants.
Verdict: Partially True (60% confidence)
Explanation: According to sources from PubMed and Nature, the Mexico City Prospective Study sequenced the genomes of nearly 150,000 adults, confirming the scale of the study's genomic sequencing efforts. However, while these sources support the sequencing aspect, they do not directly confirm the specific findings of complex admixture patterns and medically significant genetic variants. The absence of direct confirmation for these specific findings means the claim is rated partially true rather than correct.