Select the correct match:

Options

A. Ribozyme - Nucleic acid
B. G.Mendel - Transformation
C. T.H. Morgan - Transduction
D. `F_2xx` Recessive parent - Dihybrid cross

Answer

To solve the question "Select the correct match," we will analyze each of the given options step by step.

### Step 1: Analyze the First Option - Ribozyme, Nucleic Acid
- **Definition of Ribozyme**: Ribozyme refers to RNA molecules that have catalytic properties, meaning they can accelerate biochemical reactions.
- **Relation to Nucleic Acid**: RNA stands for ribonucleic acid, which is indeed a type of nucleic acid. Therefore, this option is correct.

### Step 2: Analyze the Second Option - G. Mendel, Transformation
- **Definition of G. Mendel**: Gregor Mendel is known for his foundational work in genetics, particularly the laws of inheritance.
- **Relation to Transformation**: Transformation refers to a process in genetics where genetic material is transferred from one organism to another, which is not associated with Mendel's work. Therefore, this option is incorrect.

### Step 3: Analyze the Third Option - T. Morgan, Transduction
- **Definition of T. Morgan**: Thomas Hunt Morgan is recognized for his work on the role of chromosomes in heredity.
- **Relation to Transduction**: Transduction is a process where DNA is transferred from one bacterium to another by a virus. This concept is not related to Morgan's work. Therefore, this option is incorrect.

### Step 4: Analyze the Fourth Option - F2 Generation, Dihybrid Cross
- **Definition of F2 Generation**: The F2 generation refers to the second filial generation in a breeding experiment.
- **Relation to Dihybrid Cross**: A dihybrid cross involves two traits and two parents. The statement that the F2 generation crossed with a recessive parent is a dihybrid cross is incorrect, as it does not accurately describe the nature of a dihybrid cross. Therefore, this option is also incorrect.

### Conclusion
After analyzing all four options, we conclude that the only correct match is:
- **Option 1: Ribozyme is a nucleic acid.**