Rachel Andersen

Jay and Manny set out to cut down their own Christmas tree. Meanwhile, Gloria is on edge when her mother visits, and Mitchell does last-minute shopping to find the perfect gift for Lily.

Callie and Arizona's wedding is not coming together as they hoped it would; Alex seems to be the first choice for chief resident; Meredith and Derek make a life-changing decision; Dr Perkins tempts Teddy with a proposition.

Richard's 10,000th surgery is a liver transplant for two sisters; Derek and Lexie take on a case that had been declared inoperable; Teddy and Cristina try to swipe a case from Alex and Dr McQueen; Meredith tries to choose a specialty.

The residents agonise over their upcoming exam results; Arizona's childhood friend needs medical help; the doctors try to help a patient who is missing one third of his skull; Julia wants to start a family with Mark.

When word spreads that Lorelai was the one who proposed, Luke is embarrassed; Lorelai, still angry at Rory for dropping out, tells Emily and Richard that they can care for her now.

Veridian Dynamics tries to match employees based on their genetic compatibility; Linda and Ted find themselves instantly attracted to their supposed matches.