Question

the e antigen in isbt nomenclature is:

004003
r2r2
rh: 1, 2, -3, 4, 5
dce/dce

Explanation:

Identify the ISBT system code

Using the Rh Blood Group System knowledge point
The International Society of Blood Transfusion (ISBT) assigns a unique six-digit number to each blood group antigen. The first three digits represent the blood group system (004 for the Rh system), and the last three digits represent the specific antigen.

Determine the specific antigen number

Using the Rh Blood Group System knowledge point
Within the Rh system (004), the major antigens are numbered as follows:

• D is 001
• C is 002
• E is 003
• c is 004
• e is 005

Therefore, the E antigen is represented as 004003.

Evaluate the other options

Using the Rh Blood Group System knowledge point

• "R2R2" is Wiener genotype nomenclature.
• "Rh: 1, 2, -3, 4, 5" is Rosenfield nomenclature.
• "dcE/dcE" is a modified Fisher-Race genotype representation.

Answer:

• (A) 004003 (Correct answer)
• (B) R2R2
• (C) Rh: 1, 2, -3, 4, 5
• (D) dcE/dcE