Select the wrong statements

Options

A. W.M. Stanley showed that viruses could be crystallized
B. The term 'contagium vivum fluidum' was coined byM.W. Bejerinek
C. Mosaic disease in tobacco and AIDS in human being are caused by viruses
D. The viroids were dicovered by D.J. Ivanowski

Answer

To solve the question of selecting the wrong statements, we will analyze each statement one by one:

### Step 1: Analyze the First Statement
- **Statement**: W.M. Stanley showed that the virus could be crystallized.
- **Analysis**: This statement is correct. W.M. Stanley was indeed the first to crystallize a virus, specifically the Tobacco Mosaic Virus (TMV), which helped in studying its properties.

### Step 2: Analyze the Second Statement
- **Statement**: The term "quantisim vibum fluidum" was coined by W.M. Wegenerich.
- **Analysis**: This statement is also correct. The term "quantisim vibum fluidum" refers to a concept in virology, and it is attributed to W.M. Wegenerich.

### Step 3: Analyze the Third Statement
- **Statement**: Mosaic disease in tobacco and AIDS in human beings are caused by viruses.
- **Analysis**: This statement is correct. The mosaic disease in tobacco is caused by the Tobacco Mosaic Virus (TMV), and AIDS is caused by the Human Immunodeficiency Virus (HIV).

### Step 4: Analyze the Fourth Statement
- **Statement**: The Viroids were discovered by D. J. Evian-Vosky.
- **Analysis**: This statement is incorrect. Viroids were actually discovered by Theodor O. Diener, not D. J. Evian-Vosky.

### Conclusion
The only wrong statement among the options provided is the fourth statement regarding the discovery of viroids.

### Final Answer
The wrong statement is: **The Viroids were discovered by D. J. Evian-Vosky.**

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