Grease or spray 8x8-in. baking pan. Preheat oven to 425F. In bowl mix flour, cornmeal, sugar, baking powder and salt.Stir in blueberries.In small bowl beat egg; add milk and oil, mix.Pour all at once into flour mixture.Stir just until dry ingredients are evently moistened.Pour batter into baking pan.Bake 25 minutes or until golden.