Unidirectional flow of information called central dogma was given by

Options

A. F.H.C Crick
B. Temin
C. Baltimore
D. Dulbecco

Answer

**Step-by-Step Solution:**

1. **Understanding the Central Dogma**: The central dogma of molecular biology describes the flow of genetic information within a biological system. It outlines how information is transferred from DNA to RNA and then to proteins.

2. **Flow of Information**: The flow of information is unidirectional:
- **DNA Replication**: The process by which DNA makes a copy of itself. This is essential for cell division.
- **Transcription**: The process where the information in DNA is transcribed to produce RNA. This occurs in the nucleus of eukaryotic cells.
- **Translation**: The process where the RNA is translated into a protein. This occurs in the ribosomes in the cytoplasm.

3. **Key Processes**:
- **Replication**: DNA → DNA
- **Transcription**: DNA → RNA
- **Translation**: RNA → Protein

4. **Exceptions to the Central Dogma**: In some viruses, the flow of information can be reversed. For example, in retroviruses like HIV, RNA can be converted back into DNA through a process called reverse transcription.

5. **Attribution**: The concept of the central dogma was proposed by Francis Crick, who is one of the key figures in molecular biology.

**Final Answer**: The unidirectional flow of information called the central dogma was given by Francis Crick.

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