The Single Letter That Threatened the Case

Name: The Single Letter That Threatened the Case
Genre: Documentary

One disputed point in Nicholas II's mitochondrial DNA sparks a scientific challenge—until his dead brother provides an answer.

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Transcript

The tsar’s mitochondrial DNA showed mixed bases at one position, called heteroplasmy.
After 1991 excavation, genetic tests linked the remains to Nicholas II and his family.
The tsarina’s mitochondrial DNA matched Prince Philip in hypervariable regions HVI and HVII.
The tsar’s mitochondrial sample showed mixed C and T bases at position 16,169.
A small but vocal number of scientists raised doubts about the Romanov identification.
Some scientists questioned whether the mixed bases came from contamination rather than true heteroplasmy.
By the late 1990s, doubts remained around the identification.
In 1998, the Russian Orthodox Church rejected the remains’ identification.
Maria told tutor Sidney Gibbes she would happily stay in Tobolsk forever. I would happily stay in Tobolsk forever.
A family can disappear from records, while one biological detail keeps pulling them back.
Investigators then compared the tsar’s result with DNA from his brother Georgii.
The brother carried the same point heteroplasmy, supporting the authenticity of the tsar’s DNA.
Still, the grave held no remains of Alexei or one younger daughter.
The missing bodies were believed to have been incinerated.
The comparison supported identifying the remains as Nicholas II.

Georgii's matching heteroplasmy strengthened the science, yet the Church's refusal and the missing children kept the Romanov controversy alive.

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