MEREDITH AND DEREK RECEIVE SOME DISTURBING NEWS, ON ABC'S "GREY'S ANATOMY"

Diane Farr ("Rescue Me," Numb3rs") and Frances Conroy ("Six Feet Under") Guest Star

"Can't Fight Biology" - Things are hostile on all fronts when a visit to the obstetrician results in some disturbing news for Meredith and Derek, and Lexie loses it when she notices Meredith and April getting closer. Meanwhile a car crash brings in multiple traumas and Jackson tries using his physical attributes to get ahead in the operating room, while Cristina's self-doubt carries outside of the hospital and into her house hunting with Owen, on "Grey's Anatomy," THURSDAY, OCTOBER 14 (9:00-10:01 p.m., ET) on the ABC Television Network.

"Grey's Anatomy" stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Justin Chambers as Alex Karev, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Eric Dane as Mark Sloan, Chyler Leigh as Lexie Grey, Kevin McKidd as Owen Hunt, Jessica Capshaw as Arizona Robbins, Kim Raver as Teddy Altman, Jesse Williams as Jackson Avery and Sarah Drew as April Kepner.

Guest cast includes Frances Conroy as Eleanor, Diane Farr as Lila, Nathan Halliday as Jake Fisher, Jon Curry as Fred Fisher, Kate Martin as Vickie Fisher, Christian Clemenson as Ivan Fink, Stacey Miller as Kimmy, Jackie Houston as realtor, Jennifer Say Gan as Dr. Keating and Linda Klein as Scrub Nurse Linda.

"Can't Fight Biology" was written by Peter Nowalk and directed by Ed Ornelas.

"Grey's Anatomy" is broadcasted in 720 Progressive (720P), ABC's selected HTV format, with 5.1-channel surround sound. A TV parental guideline will be assigned closer to airdate.

For more information on "Grey's Anatomy" please visit ABC.com.