The reason due to which a person with type A blood can receive blood only from types A and O, but can donate either type A or AB blood needs to be explained. Concept Introduction: Human blood has been classified into 4 types A, B, AB and O. These blood types are determined by specific polysaccharides that are covalently attached to a membrane protein in red blood cells. These polysaccharides contain the monosaccharides, D-galactose, L-fucose, N-acetyl-D-glucosamine and N-acetyl-D-galactosamine. Type A blood contains all four monosaccharides. Type B blood contains N-acetyl-D-glucosamine, two D-galactose units and L-fucose. Type AB blood has both type A and B carbohydrates. Type O blood contains N-acetyl-D-glucosamine, D-galactose and L-fucose

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Chapter 20, Problem 73P

Interpretation Introduction

Interpretation:

The reason due to which a person with type A blood can receive blood only from types A and O, but can donate either type A or AB blood needs to be explained.

Concept Introduction:

Human blood has been classified into 4 types A, B, AB and O. These blood types are determined by specific polysaccharides that are covalently attached to a membrane protein in red blood cells. These polysaccharides contain the monosaccharides, D-galactose, L-fucose, N-acetyl-D-glucosamine and N-acetyl-D-galactosamine. Type A blood contains all four monosaccharides. Type B blood contains N-acetyl-D-glucosamine, two D-galactose units and L-fucose. Type AB blood has both type A and B carbohydrates. Type O blood contains N-acetyl-D-glucosamine, D-galactose and L-fucose

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