You assay cell surface oligosaccharides from a blood sample. After determining the composition of the oligosaccharides relative to a reference monosaccharide, fucose, you conclude the donor is blood type B. What brought you to this conclusion?

Question

Biology

Isabela Santiago

8 January, 21:42

You assay cell surface oligosaccharides from a blood sample. After determining the composition of the oligosaccharides relative to a reference monosaccharide, fucose, you conclude the donor is blood type B. What brought you to this conclusion?

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Answers (1)

Know the Answer?

Rene Larsen · Answer 1

Here the fucose is linked to galactose by alpha1,2 glycosidic linkage.

Explanation:

Fucose is a deoxy sugar consist of 6 carbon atoms which means fucose is a hexose sugar.

Fucose does not contain - OH group at C6 carbon that"s why it is termed as deoxy sugar.

Fucose can link to both Nactylglucosame by alpha-1,6 glycosidic linkage and to galactose by alpha-1, glycosidic linkage generates the H antigen.

As donor is blood type B that means fucose is linked to galactoseof H antigen by alpha 1,2glycisidic linkage.