GLOBAL MARKETS-Dollar up, stocks off after Fed comments

(Updates prices, changes comments) * Brent oil stabilizes near $50 a barrel after 5 pct drop * Euro hits two-week low versus greenback * Utilities lead declines on Wall Street By Rodrigo Campos NEW YORK, Aug 4 (Reuters) - The U.S. dollar and Treasury yields rose on Tuesday, while stocks fell, after comments from a top Federal Reserve official brought forward market expectations of an interest rate increase. Oil prices edged higher despite the stronger greenback, boun