Assertion: Protoplast culture is an important technique of genetic engineering.
Reason: This technique results in the production of genetically modified crops.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the Reason is not the correct explanation of the assertion
C. If assertion is true but the Reason are false
D. If both Assertion and Reason are false

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Protoplast culture is an important technique of genetic engineering." To evaluate this, we need to define what protoplast culture is. Protoplasts are plant cells that have had their cell walls removed. Protoplast culture involves isolating these cells and can lead to hybridization or tissue culture.

2. **Understanding the Reason**: The reason given is that "This technique results in the production of genetically modified crops." This implies that protoplast culture directly contributes to the creation of genetically modified organisms (GMOs).

3. **Evaluating the Assertion**: While protoplast culture is a technique used in plant biotechnology, it is not primarily a method of genetic engineering. Genetic engineering typically involves direct manipulation of an organism's DNA, such as through recombinant DNA technology, rather than just protoplast culture.

4. **Evaluating the Reason**: The reason states that protoplast culture results in genetically modified crops. However, while protoplast culture can be part of the process of creating hybrids or facilitating genetic changes, it does not itself produce genetically modified crops. Genetic modification usually involves altering the DNA sequence of the organism.

5. **Conclusion**: Since both the assertion and the reason are found to be incorrect, we conclude that both the assertion and reason are false.

### Final Answer:
Both the assertion and reason are false.

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