Discussion
Which one of the following options correctly matches the microbial names in Column I with their corresponding sources of epithet in Column II?
| Column I | Column II |
|---|---|
| (P) Klebsiella pneumoniae | (i) causes stupor in mice |
| (Q) Penicillium chrysogenum | (ii) forms pus |
| (R) Salmonella typhimurium | (iii) the disease it causes |
| (S) Streptococcus pyogenes | (iv) produces a yellow pigment |
Answer: C
The correct matching is R-i; S-ii; P-iii; Q-iv.
- Salmonella typhimurium: from typhus (Greek typhos, stupor) and murium, of mice, because it causes a typhoid-like illness in mice (i).
- Streptococcus pyogenes: pyogenes means pus-forming (ii).
- Klebsiella pneumoniae: named after the disease it causes, pneumonia (iii).
- Penicillium chrysogenum: chrysogenum means producing gold, for the yellow pigment it secretes (iv).
Each wrong option pairs at least one epithet with an unrelated meaning, for example pneumoniae with stupor in mice or chrysogenum with pus.
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