The founding treaty was established under the initiative of the Soviet Union and signed on 14 May 1955, in Warsaw. The Warsaw Pact was the military complement to the Council for Mutual Economic Assistance (CoMEcon), the regional economic organization for the communist States of Central and Eastern Europe.
Oils and Seasonings. As a type O person, you'll need to give up ketchup, pepper, vinegar, vanilla, nutmeg and cinnamon in order to follow the Blood Type diet. You should also avoid oils like corn, safflower and peanut oil. Canola and sesame oil can be used sparingly.
Type O blood is recessive so, to my limited understanding, two type O parents each have O-O genotype and will almost always have a type O child, barring a mutation of course. So, assuming no initial error in blood typing was made with any of the parties, with a mutation it is possible, but the mutation is not likely.