1 If you have type B antigens on the surface of your red blood cells, you also have anti-A antibodies in your plasma. 2  If you have type A and type B antigens on the surface of your red blood cells, you do not have antibodies to A or B antigens in your plasma.
As of 2016, there are 540 billionaires in the US (out of 1,810 in the world). Here are the top 50, according to Business Insider: Bill Gates.
Forbes' 10 youngest billionaires. Facebook co-founder Dustin Moskovitz has occupied the top spot on the Forbes' youngest billionaires list, beating Facebook CEO Mark Zuckerberg. The list also includes Eduardo Saverin and Sean Parker from Facebook. Others featuring on the list are Hariri brothers, Scott Duncan and Yishikazu Tanaka.