Beginner Gardening: Mysterious White Sunflower Seeds, 0 by Tsachi

Tsachi wrote:
Hello,

I'm growing several varieties of sunflowers in my balcony simultaniously (its quite the jungle in there) and hand pollinated different kinds to see what the next generation would bring. I recently noticed one of the sunflowers is producing seeds that are completely white. They are plump and almost fully mature (many completely mature even) and yet they retain a surprisingly white color.

I am curious to what will happen with these seeds. Are they genetic defects? What caused this color? Any information would be nice. I searched the internet and found no information.

Many thanks in advance!
-Tsachi