Which of the following statements is/are correct

Options

A. The current interest in the manipulation of microbes, plants and animals has raised serious ethical isssues
B. One possible risk of genetic engineering is the accidental production of antibiotic resistant microrrganisms
C. Although risks are possible,genetic engineering offers more of a contribution to human welfare than threats
D. all of these

Answer

To determine which statements are correct regarding the manipulation of microbes, plants, and animals in biotechnology, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Analyze Statement 1**:
- The first statement claims that the current interest in manipulating microbes, plants, and animals has raised serious ethical issues.
- **Evaluation**: This statement is correct. Genetic modification can lead to potential risks and ethical concerns, such as environmental impacts and the welfare of organisms involved.

2. **Analyze Statement 2**:
- The second statement suggests that one possible risk of genetic engineering is the accidental production of antibiotic-resistant microorganisms.
- **Evaluation**: This statement is also correct. Genetic engineering can inadvertently create microorganisms that are resistant to antibiotics, posing a significant health risk as these organisms may not be treatable with standard antibiotics.

3. **Analyze Statement 3**:
- The third statement posits that although risks are possible, genetic engineering offers more contributions to human welfare than threats.
- **Evaluation**: This statement is true. While there are risks associated with genetic engineering, the benefits, such as improved crop yields, disease resistance, and medical advancements, often outweigh these risks, contributing positively to human welfare.

4. **Conclusion**:
- Since all three statements have been evaluated and found to be correct, we conclude that the correct answer is that all statements are correct.

### Final Answer:
All statements are correct.