1. What is the principle of minsterial responsibility?

A: The chief executive officer, usually called the prime minister, was responsible to the popularly elected legislative body, not to the king or president. This principle is calls ministerial responsibiltiy.

2. What was the role of the Duma in the Russian government?

A: The Duma was a legislative assembly created by Nicholas II who curtailed its power in 1907.

Yes for both your answers.