Which is absent in virus ?

Options

A. Genetic material
B. Protein cover
C. Protoplasm
D. Both A and B.

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Viruses**:
- Viruses are unique entities that consist of genetic material (either DNA or RNA) and a protein coat known as a capsid.

2. **Identifying Components Present in Viruses**:
- The genetic material in viruses can be either single-stranded or double-stranded. This means that viruses do contain genetic material, which is essential for their replication and function.
- The protein coat, or capsid, is also a crucial component of viruses, providing protection to the genetic material.

3. **Identifying Components Absent in Viruses**:
- One of the key components that is absent in viruses is protoplasm. Protoplasm is the living substance within a cell, which includes cytoplasm and the nucleus. Since viruses do not have cellular structures, they lack protoplasm.

4. **Conclusion**:
- Based on the analysis, the correct answer to the question "Which is absent in virus?" is protoplasm.

**Final Answer**: Protoplasm is absent in viruses.

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