Add the flour, baking soda, and baking powder to a bowl and mix together.
In a new bowl, add the butter and sugar and cream together until fluffy.
Add the eggs, sour cream, vanilla extract, lemon extract, and mix together.
Next, add the flour mixture a little bit at a time. Mix and add the rest. Mix again until well blended.
Place the blueberries in a bowl and add the one tablespoon of flour. Gently mix until covered.
Add the blueberries and lemon zest to the cake batter. Gently fold in with a spatula.
Pour into bundt cake pan. Tamp the bundt pan down a couple of times to get all of the air out.
Bake for approximately 1 hour and 15 minutes, or until cake tester comes out clean.
Cool for about half an hour before inverting the bundt pan onto a cake plate. Cool for another half an hour before glazing.
Lemon Glaze
Add the powdered sugar to a bowl.
Pour the lemon juice into the bowl and mix.
Pour over the cooled cake.