The Underlying Molecular Basis for Distinguishing Blood-Group Antigens A,B and O

question 21

Multiple Choice

The underlying molecular basis for distinguishing blood-group antigens A,B and O is _____ at the erythrocyte surface.

• A)the presence or absence of fucose in glycolipids
• B)differences in the oligosaccharide attached to the lipid ceramide
• C)structural polymorphisms in the Rhesus D antigen
• D)the levels of MHC class I and class II molecules.

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Definitions:

Attract Stimulus

A term used to describe a factor or element that draws or garners attention towards itself.

Shift Attention

The process of changing focus from one object or task to another, reflecting the flexible allocation of cognitive resources.

Self-control

The capacity to regulate one's thoughts, emotions, and behaviors in the face of temptations and impulses.

Self-awareness

Awareness of one's own personality and individuality, including recognizing one’s emotions, thoughts, and behaviors.