The individual 100m spots went to Dwain Chambers, Harry Aikines-Aryeetey and Marlon Devonish.
UK Athletics coach Charles van Commenee said: "This team has been selected to give us the best possible results."
“Daegu is another stop on the journey to make our athletes run faster, jump higher and throw further”
UKA head coach Charles van Commenee
World and European heptathlon champion
, who holds both titles in the triple jump, European 5,000m and 10,000m champion
, the European and Commonwealth 400m hurdles champion, will lead the British charge for medals in Daegu.
But there was no place for Michael Bingham (400m), Chris Thompson (10,000m) or Rhys Williams (400m hurdles).
"I am looking to see an improvement from two years ago in Berlin, where we recorded six medals and 20 top eight finishes," added Van Commenee.
"It is important to remember there is work to do before London 2012 and Daegu is another stop on the journey to make our athletes run faster, jump higher and throw further.
Archive - Lewis-Francis sprints to 60m win in January 2011
"The aim in Daegu is to get more athletes within touching distance of the podium and these World Championships are ideal preparation for what the athletes will encounter next summer and beyond."
Welshman Christian Malcolm will captain the 67-strong squad. The 32-year-old, who first wore a British vest 15 years ago, was delighted to have been handed the honour.
"I can't believe it. It is a proud moment in any sport to captain your country," said the sprinter, who will be competing in the 200m.
GREAT BRITAIN AND NORTHERN IRELAND TEAM
Harry Aikines-Aryeetey, Dwain Chambers, Marlon Devonish
James Ellington, Christian Malcolm
Andrew Osagie, Michael Rimmer
Lawrence Clarke, William Sharman, Andy Turner
Jack Green, Dai Greene, Nathan Woodward
Martyn Bernard, Tom Parsons
Greg Rutherford, Chris Tomlinson
Abdul Buhari, Brett Morse, Carl Myerscough
Aikines Aryeetey, Devonish, James Ellington, Mark Lewis-Francis, Christian Malcolm, Craig Pickering, Danny Talbot
Richard Buck, Chris Clarke, Jack Green, Greene, Luke Lennon Ford, Nigel Levine, Martyn Rooney, Richard Strachan
Andrew Lemoncello, Lee Merrien, Dave Webb (all team)
Jeanette Kwakye, Anyika Onuora, Laura Turner
Lee McConnell, Christine Ohuruogu, Nicola Sanders
Emma Jackson, Jenny Meadows, Marilyn Okoro
Lisa Dobriskey, Hannah England
Eilidh Child, Perri Shakes-Drayton
Holly Bleasdale, Kate Dennison
Jessica Ennis, Louise Hazel
Montell Douglas, Jeanette Kwakye, Onuora, Abi Oyepitan, Asha Philip, Porter, Laura Turner
Eilidh Child, Lee McConnell, Jenny Meadows, Christine Ohuruogu, Marilyn Okoro, Nadine Okyere, Nicola Sanders, Perri Shakes-Drayton
Alyson Dixon, Susan Partridge (both team)
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.