Which of the following occurs in the process of central dogma reverse?

Options

A. Conversion of a strand of mRNA to DNA
B. Changes in the chromosomal karyotype
C. Gene replication process
D. Protein production process

Answer

To solve the question about which process occurs in the reverse of the central dogma, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Central Dogma**: The central dogma of molecular biology describes the flow of genetic information within a biological system. It typically follows this sequence:
- DNA → RNA (transcription)
- RNA → Protein (translation)

2. **Identify the Reverse Process**: The reverse of the central dogma would involve taking the end product (RNA) and converting it back to the original molecule (DNA). This process is known as reverse transcription.

3. **Analyze the Options**: The question provides several options:
- A) Conversion of a strand of mRNA to DNA
- B) Changes in the chromosomal karyotype
- C) Gene replication process
- D) Protein production process

4. **Select the Correct Option**: Among the options, option A (Conversion of a strand of mRNA to DNA) directly describes the process of reverse transcription, which is the reverse of the central dogma.

5. **Conclusion**: Therefore, the correct answer to the question is option A.

### Final Answer:
**Option A: Conversion of a strand of mRNA to DNA.**

---