In a bowl combine sour cream with the herbs and seasonings. Dip chicken into sour cream mixture, then roll in the crumbs. Place chicken breasts, skin side down, in a greased 13x9-inch baking pan. Bake at 350° for 35 minutes. Turn and bake 15 to 20 minutes longer, until chicken is tender and juices run clear. Boneless chicken breasts will take less time.