Question

why is it disproven that thomas jeffersons nephews did not father sally hemmings children?
the nephews had the same y-chromosome strs as jefferson himself, not sally hemmings sons.
the nephews did not have the same y chromosome as sally hemmings sons.
the nephews did not have enough autosomal strs in common with sally hemmings children.
the nephews did not have enough x-chromosome strs in common with sally hemmings children..

Explanation:

Paternity testing for male children uses Y-chromosome markers (passed patrilineally). If the nephews fathered Sally Hemmings’s sons, the sons would share the nephews’ Y-chromosome. Disproving this requires showing no such match, which aligns with option B. Other options are incorrect: A contradicts the test logic, autosomal/X-chromosome STRs are not the primary markers for patrilineal paternity in this context.

Answer:

B. The nephews did not have the same Y chromosome as Sally Hemming's sons.