* Dollar drops to near seven-week low * Spot gold may slide into $1,744-$1,758/oz range - technicals (Recasts, adds comment, updates prices) April 20 (Reuters) - Gold prices inched higher on Tuesday, hovering below a seven-week peak hit in the previous session, bolstered by a pullback in U.S. Treasury yields and a weaker dollar. Spot gold was up 0.1% to $1,770.40 per ounce at 1215 GMT, after hitting $1,789.77 on Monday, its highest since Feb. 25. U.S. gold futures climbed 0.1% to $1,772.70 per ounce. “The fact that the bond market has seemed to stabilise a little bit” is helping gold, said StoneX analyst Rhona O’Connell.