Genetically modified tobacoo plant with Bt gene is resistant to

Options

A. Bollworms
B. Hornworms
C. Hookworms
D. Roundworms

Answer

**Step-by-Step Solution:**

1. **Understanding Genetic Modification**: Genetically modified organisms (GMOs) are created by altering the genetic material of a plant or animal to express desired traits. In this case, the tobacco plant has been genetically modified to include the Bt gene.

2. **Identifying the Bt Gene**: The Bt gene is derived from the bacterium *Bacillus thuringiensis*. This gene produces a protein that is toxic to certain insects, specifically those that belong to the order Lepidoptera (which includes moths and butterflies).

3. **Resistance Mechanism**: When the tobacco plant expresses the Bt gene, it produces the Bt protein. Insects that consume the plant material containing this protein will experience toxicity, which leads to their death. This provides the plant with a natural form of pest resistance.

4. **Target Pests**: The genetically modified tobacco plant is particularly resistant to specific pests, such as the tobacco hornworm and other caterpillars that feed on tobacco plants. These pests are members of the phylum Arthropoda.

5. **Conclusion**: Therefore, the genetically modified tobacco plant with the Bt gene is resistant to certain insect pests, primarily those that are harmful to tobacco crops.

**Final Answer**: The genetically modified tobacco plant with the Bt gene is resistant to specific insect pests, particularly caterpillars like the tobacco hornworm.

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