Introduction of genetically modified food is not desirable because-

Options

A. Allergies and toxicity may be caused
B. Incorporation of antibiotic resistance in human beings
C. Disturbance in metabolism due to enzyme for antibiotic resistance
D. All

Answer

### Step-by-Step Solution:

1. **Understanding Genetically Modified Foods (GMFs)**:
- Genetically modified foods are derived from organisms whose genetic material has been altered using genetic engineering techniques. This modification often involves inserting genes that confer desirable traits, such as pest resistance or improved nutritional content.

2. **Potential Concerns with GMFs**:
- There are several concerns regarding the consumption of genetically modified foods, which include:
- Allergies and toxicity: GMFs may introduce new proteins that can trigger allergic reactions or be toxic to humans.
- Antibiotic resistance: Some genetically modified crops are engineered to be resistant to antibiotics, raising concerns about the potential transfer of this resistance to humans.
- Metabolic disturbances: The introduction of foreign genes may disrupt normal metabolic processes in the human body.

3. **Analyzing the Options**:
- The question presents several options regarding why the introduction of genetically modified food is not desirable:
- Option 1: Allergies and toxicity may be caused.
- Option 2: Incorporation of antibiotic resistance in human beings.
- Option 3: Disturbance in metabolism due to enzyme for antibiotic resistance.
- Option 4: All of the above.

4. **Conclusion**:
- After analyzing the options, it is clear that all the concerns listed are valid reasons for the apprehension surrounding genetically modified foods. Therefore, the introduction of genetically modified food is not desirable due to the potential for allergies, toxicity, antibiotic resistance, and metabolic disturbances.

### Final Answer:
The introduction of genetically modified food is not desirable because of the potential for allergies and toxicity, incorporation of antibiotic resistance in humans, and disturbance in metabolism. Thus, the correct answer is **Option 4: All of the above**.

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