Question
A person shows strong unusual hypersensitive reactions when exposed to certain substances present in the air, identify the condition. Name the cells responsible for such reactions. What precaution should be taken to avoid such reactions.
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| No. | Syndrome | Cause | Characteristics of affected individual | Sex Male/Female/Both |
| 1 | Down’s | Trisomy of 21 | ‘a’ (i) (ii) | 'b' |
| 2 | ‘c’ | XXY | Overall masculine development | ‘d’ |
| 3 | Turner’s | 45 with OX | ‘e’ (i) (ii) | ‘f’ |