Is it possible that when a red adenium was fertilized by a white one will produce a white offspring?

I bought a seedling a year ago of a red adenium, thats what the seller said, now it flowers it is white. The one who sold me might have given me the wrong seedling.

Is it possible that when a red adenium was fertilized by a white one will produce a white offspring?
Very possible, the only sure way to guarantee a red flower is to graft it. Adeniums are one of the easiest plants to graft. RScott