A: In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group.
R: Nucleproteins are a type of conjugated proteins.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

To solve the question, we need to analyze the two statements provided:

**Assertion (A):** In conjugated proteins, the protein molecule is joined to a non-protein group called a prosthetic group.
**Reason (R):** Nucleoproteins are a type of conjugated proteins.

### Step-by-Step Solution:

1. **Understanding Conjugated Proteins:**
- Conjugated proteins are proteins that consist of amino acids and also contain a non-protein component known as a prosthetic group.
- This prosthetic group can be a metal ion, a carbohydrate, a lipid, or a nucleic acid.

2. **Identifying the Assertion:**
- The assertion states that in conjugated proteins, the protein molecule is joined to a non-protein group called a prosthetic group.
- This statement is true because it accurately describes the structure of conjugated proteins.

3. **Understanding Nucleoproteins:**
- Nucleoproteins are a specific type of conjugated protein where the prosthetic group is nucleic acid (either DNA or RNA).
- In deoxyribonucleoproteins, DNA serves as the prosthetic group, while in ribonucleoproteins, RNA serves as the prosthetic group.

4. **Identifying the Reason:**
- The reason states that nucleoproteins are a type of conjugated proteins.
- This statement is also true as nucleoproteins fit the definition of conjugated proteins since they consist of proteins and nucleic acids.

5. **Conclusion:**
- Both the assertion and the reason are true, and the reason correctly explains the assertion.
- Therefore, the answer to the question is that both statements are correct, and the reason is a valid explanation for the assertion.

### Final Answer:
Both the assertion and reason are true, and the reason is a correct explanation of the assertion.

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