Answer :
Final answer:
Tsarina Alexandra's biggest mistake was seeking advice from Rasputin, which led to the downfall of the Romanov dynasty and contributed to the Russian Revolution.
Explanation:
Tsarina Alexandra's biggest mistake after taking over the Russian leadership was seeking advice from the mystic Rasputin. Rasputin, a controversial figure, influenced her decisions and policies, contributing to the downfall of the Romanov dynasty. This reliance on an unqualified advisor alienated the Russian people and fueled unrest, eventually leading to the Russian Revolution of 1917.
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