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Which of the following statements is cor...

Which of the following statements is correct-
I. Mycoplasma has no cell wall
II. Mycoplasma is the smallest living organism
III. Mycoplasma cannot survive without `O_(2)`
IV. Mycoplasma are pathogenic in animals and plants
V. True sexuality is not found in bacteria
VI. A sort of sexual reproduction by adopting a primitive DNA transfer from one bacterium to the other occurs

A

I,II,V

B

Only III

C

I, II, IV, V, VI

D

All

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements about Mycoplasma are correct, we will analyze each statement one by one. ### Step-by-Step Solution: 1. **Statement I: Mycoplasma has no cell wall.** - Mycoplasma is known for lacking a cell wall. This is a defining characteristic of this genus. Therefore, this statement is **correct**. 2. **Statement II: Mycoplasma is the smallest living organism.** - Mycoplasma is indeed one of the smallest known living organisms. It is smaller than many bacteria and is often cited as the smallest. Thus, this statement is **correct**. 3. **Statement III: Mycoplasma cannot survive without O₂.** - This statement is incorrect. Mycoplasma can survive in both aerobic (with oxygen) and anaerobic (without oxygen) environments. Therefore, this statement is **incorrect**. 4. **Statement IV: Mycoplasma are pathogenic in animals and plants.** - Mycoplasma species are known to be pathogenic, affecting both animals and plants. This statement is **correct**. 5. **Statement V: True sexuality is not found in bacteria.** - This statement is correct. Bacteria do not reproduce sexually in the traditional sense; they reproduce asexually, primarily through binary fission. Therefore, this statement is **correct**. 6. **Statement VI: A sort of sexual reproduction by adopting a primitive DNA transfer from one bacterium to the other occurs.** - This statement refers to a process known as conjugation, where genetic material is transferred between bacteria. While it is not sexual reproduction in the true sense, it is a form of genetic exchange. Thus, this statement is **correct**. ### Summary of Statements: - **Correct Statements:** I, II, IV, V, VI - **Incorrect Statement:** III ### Conclusion: The correct statements about Mycoplasma are I, II, IV, V, and VI. The only incorrect statement is III. ---
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