Fill in the blanks: The two most clinically important groups of antigens on erythrocytes are the______and______blood groups.

Video transcript

Hey, everyone. Let's take a look at this question together. The A bo blood group system categorizes blood types based on what is it? Answer choice. A type of enzyme present in red blood cells. Answer choice B, the type of antigen present in red blood cells. Answer choice C antibodies present in red blood cells or answer choice D the composition of the cell membrane. Let's work this problem out together to try to figure out which of the following answer choices best explains how the A bo blood group system categorizes blood types. So in order to solve this question, we have to recall what we have learned about the A bo blood group system and how it categorizes blood types. And we can recall that the A bo blood group system categorizes blood types based on the presence or the absence of two antigens. The A antigen or the B antigen on the surface of the red blood cells such as blood type A has the A antigens present on the surface of their red blood cells. Blood type B has the B antigens. Blood type A B has the A and B antigens on the surface of their red blood cells and blood type O has neither A or B antigens on the surface of their red blood cells. So looking at our answer choices, we know that answer. Choice B is the correct answer. As the A bo blood group system categorizes blood types based on the type of antigen that is present in the red blood cells. So answer choice B is the only correct answer. Choice. I hope you found this video to be helpful. Thank you and goodbye.