People with type o blood have both A and B molecules on their red blood cells. O True
O False

true

Explanation:

Blood group O has no antigens, but both anti-A and anti-B antibodies in the plasma, as well as some special “anti-A,B” antibodies

Reference:

https://theconversation.com/blood-groups-beyond-a-b-and-o-what-are-they-and-do-they-matter-

False

Explanation:

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the first option is ur answer : )