| Date | May 2012 | Marks available | 1 | Reference code | 12M.1.HL.TZ2.21 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | State | Question number | 21 | Adapted from | N/A |
Question
What is a long-term effect of HIV on the immune system?
A. Increase in leucocytes
B. Reduction in erythrocytes
C. Increase in antibody production
D. Reduction in active lymphocytes
Markscheme
D
Examiners report
N/A
Syllabus sections
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