By Martyn Herman ALCUDIA, Mallorca, Jan 10 (Reuters) - Under-fire Team Sky boss Dave Brailsford has accused the chairman of UK Anti-Doping (UKAD) of double standards as the body's investigation into alleged wrongdoing in British cycling casts a cloud over the start of the new season. Speaking at Team Sky's training camp on Tuesday in his first media briefing since being questioned by a parliamentary committee in December, he criticised David Kenworthy for describing the evidence Brailsford and other British Cycling figures gave to MPs as "disappointing" and "extraordinary". Team Sky and British Cycling, the national governing body, have been under scrutiny over the use of Therapeutic Use Exemptions (TUEs) and a mystery package delivered to Bradley Wiggins at the 2011 Dauphine race. More...