What is prorogation and what does it mean for Brexit?

Prorogation is a formal process to end a parliamentary session, requiring the Queen's approval. It usually lasts a short time, marked by a new session and the Queen's speech. However, Boris Johnson's five-week prorogation is unusually long, affecting the Brexit timeline. MPs have limited time to scrutinize Brexit plans, and the prorogation restricts legislative actions to block a no-deal Brexit.

How long does a typical prorogation last?

What impact does a long prorogation have on MPs regarding Brexit plans?