Which of the following is wrongly matched?

Options

A. T.O. Diener-Virolds are found to be a free DNA
B. W.M. Stanley- Crystallised proteins
C. M.W. Beijerinck-Contagium vivum fluidum
D. D.J. Ivanowsky - Microbes smaller than a bacteria cause mosaic disease of tobacco

Answer

To determine which of the following options is wrongly matched, we need to analyze each statement provided in the question.

1. **TO Dynar and Veroids**:
- TO Dynar discovered Veroids, which are indeed infectious agents that cause Potato Spindle Tuber Disease. This statement is correctly matched.

2. **WM Stalinase and Crystallized Protein**:
- The term "WM Stalinase" appears to be a misrepresentation. There is no known crystallized protein by this name in biological classification. This statement is likely to be wrongly matched.

3. **MW Vazernik and Contagium Vivum Fluidum**:
- MW Vazernik is associated with the discovery of Contagium Vivum Fluidum, which refers to the infectious agents that are smaller than bacteria, specifically viruses. This statement is correctly matched.

4. **DJ Ivanovsky and Microbes Smaller than Bacteria**:
- DJ Ivanovsky is known for his work on the tobacco mosaic virus, which indeed showed that there are microbes smaller than bacteria. This statement is correctly matched.

5. **Cows and Mosaic Disease**:
- The mention of cows in relation to mosaic disease is incorrect, as mosaic disease primarily affects plants, particularly tobacco. This statement is likely to be wrongly matched.

Based on the analysis, the wrongly matched options are:
- WM Stalinase and Crystallized Protein
- Cows and Mosaic Disease

**Final Answer**: The wrongly matched options are WM Stalinase and Crystallized Protein, and Cows and Mosaic Disease.