People who have the o blood type possess ________.1) an enzyme that adds an n-acetylgalactosamine to the end of the oligosaccharide chain on rbc membrane glycolipids2) an enzyme that adds a galactose to the end of the oligosaccharide chain on rbc membrane glycolipids3) an enzyme that adds phospholipids to the end of the oligosaccharide chain on rbc membrane glycolipids4) no enzymes capable of attaching galactose or n-acetylgalactosamine to the end of the oligosaccharide chain on rbc membrane glycolipidsa. 2b. 3c. 4d. 1 and 2e. 1

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Answer:

4. No enzymes capable of attaching galactose or N-acetylgalactosamine to the end of the oligosaccharide chain on RBC membrane glycolipids

Explanation:

  • Glycolipids are membrane  components that are composed of lipids which are covalently bonded to polysaccharides or monosaccharides.
  • Glycolipids found in human red blood cells are involved in the ABO blood antigen types.
  • Blood group O individuals have antibodies against the type A and type B antigens.
  • Individuals with blood type O lack enzymes capable of attaching galactose or N-acetylgalactosamine to the end of the oligosaccharide chain on RBC membrane glycolipids.
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