A Flow of genetic information is through the DNA of the nucleus .
R Central Dogma is represented as follows
DNA `overset("Transcription")tomRNA overset("Translation")to`
Polypetides and 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

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "the flow of genetic information is through the DNA of the nucleus."
- This is a correct statement as DNA serves as the primary genetic material in eukaryotic cells, where it is located in the nucleus.

2. **Understanding the Reason**:
- The reason provided is that "the central dogma is represented as follows: DNA → mRNA (transcription) → polypeptides and proteins (translation)."
- This statement accurately describes the central dogma of molecular biology, which explains how genetic information is transferred from DNA to RNA and then to proteins.

3. **Analyzing the Relationship**:
- The assertion and reason both describe the flow of genetic information.
- The assertion emphasizes that DNA is the source of genetic information, while the reason explains the process through which this information is expressed in the form of proteins.

4. **Conclusion**:
- Both the assertion and the reason are correct, and the reason provides a correct explanation of the assertion.
- Therefore, we conclude that both statements are true and that the reason is a correct explanation of the assertion.

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

---