Joe gets the cookie on this one. If the airplane is in a constant speed descent or climb, then weight = gravity and the wings are holding 1g plus the amount of loading used to keep the turn coming. As we know turns require horizontal force and some wing loading, but the loading is the same whether descending or climbing for a given speed and turn rate.

If there is no turn going on, then the wing is loaded with exactly 1g in either descent or climb. Do not to confuse the forces in equilibrium steady flight with the momentary flux of forces associated with the beginning of an ascent, descent, or turn. At that time there is a momentary flux in the force equation as the forces rebalance due to the addition or removal of thrust or the change in angle of attack. In a descent the airplane starts to derive forward force in place of thrust by trading potential energy for kinetic, and in a climb it increases potential energy by the thrust derived from the prop. In either case as long as the airplane is not accelerating or decelerating the g forces are constant and they are in equilibrium.

Ref: FAA-H-8083-25 Pilot's Handbook of Aeronautical Knowledge.