Glycoproteins are known to play an important role in cell recognition, the specificity of this recognition is largely provided by
A
Lipid portion of glycoproteins
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B
Protein portion of glycoproteins
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C
Carbohydrate portion of glycoproteins
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D
Both carbohydrate and protein components of glycoproteins
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Solution
The correct option is B Carbohydrate portion of glycoproteins Carbohydrates are attached to the extracellular face of the plasma membrane in the form of glycoproteins attached to intrinsic or peripheral proteins. These majorly act as receptors for various signalling compounds. Example- antigens present on the surface of RBC are glycoproteins
So, the correct answer is 'Carbohydrate portion of glycoproteins'