Feeling a little confused by some of my ancestry dna results. My understanding is that I should be getting 50% dna from each of my parents.
My father's parents are both Russian from a long line of Russian ancestors. My mother's father was Pure Italian, Her mother was a mix of German, Irish and English.

My results put me at 32% British Isles
31% Eastern European, 17% Scandinavian, 12% Persian/Turkish/Caucasus, 6% Southern European,
2% Uncertain.

Two things I am confused about, why such a high percentage for the british Isles and how does Persia/Turkey fit into all this? I know it borders part of Russia however my fathers side is from the opposite end of the Country and it's a huge distance.
My mother's Fathers side (the Italians) look to be the closest as far as distance, when looking at the map, they are almost twice as close to Turkey, etc. as anyone else.

Is there a connection/relationship in history between Italy and Persia? Any input would be appreciated.