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By virtue of its small size and obligate...

By virtue of its small size and obligate intra cellular parasite nature which of the following bacterium was mistaken as a virus

A

Clostridium

B

Chlamydia & Rickettsia

C

Escherichia

D

Mycobacterium

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "By virtue of its small size and obligate intracellular parasite nature which of the following bacterium was mistaken as a virus?", we can follow these steps: ### Step 1: Understand the characteristics of the bacterium in question - The question specifies that we are looking for a bacterium that is both small in size and an obligate intracellular parasite. ### Step 2: Analyze the options provided 1. **Clostridium**: This bacterium is known to cause diseases like botulism and is not an obligate intracellular parasite. It does not fit the criteria. 2. **Chlamydia**: This bacterium is indeed small (around 0.5 micrometers) and is known to be an obligate intracellular parasite. It has characteristics that could lead to it being mistaken for a virus. 3. **Asteracea**: This is not a bacterium but a family of flowering plants. Therefore, it cannot be the correct answer. 4. **Mycobacterium**: This genus includes bacteria like Mycobacterium tuberculosis, which are larger than the size specified and are not obligate intracellular parasites. Thus, it does not fit the criteria. ### Step 3: Identify the correct answer - Based on the analysis, **Chlamydia** is the only option that meets both criteria of being small in size and being an obligate intracellular parasite. Therefore, it was mistakenly classified as a virus. ### Final Answer The correct answer is **Chlamydia**. ---
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