Identify the true statement regarding genetic engineering

Options

A. A gene can be synthesized artificially
B. A gene from eukaryotic cell can be made to function in a prokaryote
C. A gene from animal cell can be made to function in a plant cell
D. All

Answer

To identify the true statement regarding genetic engineering, we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Genetic Engineering**:
- Genetic engineering, also known as recombinant DNA technology, involves manipulating an organism's DNA to create new sequences or modify existing ones. This allows scientists to introduce new traits or characteristics into organisms.

2. **Evaluating the Statements**:
- **Statement 1**: "A gene can synthesize artificially."
- This statement is true. Genetic engineering allows for the artificial synthesis of genes, enabling scientists to create specific sequences of DNA for various applications.

- **Statement 2**: "A gene from a eukaryotic cell can be made to function in a prokaryotic cell."
- This statement is also true. Through genetic engineering, it is possible to insert a eukaryotic gene into a prokaryotic organism (like bacteria), allowing the prokaryote to express the eukaryotic gene.

- **Statement 3**: "A gene from an animal cell can be made to function in a plant cell."
- This statement is true as well. Genetic engineering techniques can facilitate the transfer of genes between different species, including from animals to plants, allowing for expression of animal genes in plant cells.

3. **Conclusion**:
- All three statements regarding genetic engineering are true. Therefore, the correct answer is that all options are true statements about genetic engineering.

### Final Answer:
All options are true statements regarding genetic engineering.

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