Thought of the day - sesame seeds

I enjoy a couple of teaspoons of mixed seeds on my weetabix in the morning.  The thought occurred to me that I know what plants sunflower, pumpkin, linseed and poppy seeds come from but I've no idea where sesame seeds are from (if someone says Tesco I shall kneecap them).   

The query is, has anyone tried to grow sesame and are the white seeds in my seed mix the whole seed or just the kernel?