Assertion: Cryopreservation is one of the best methods of germplasm storage.
Reason: In cryopreservation, the cells remain in a suspended stage

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

To analyze the assertion and reason provided in the question, we will break down the statements step by step.

### Step 1: Understand the Assertion
The assertion states that "Cryopreservation is one of the best methods of germplasm storage."
- Cryopreservation is indeed a widely recognized method for preserving genetic material, including seeds, pollen grains, and gametes, at extremely low temperatures (around -196 degrees Celsius) using liquid nitrogen. This method prevents biological activity and degradation, making it a reliable technique for long-term storage of genetic resources.

### Step 2: Understand the Reason
The reason states that "In cryopreservation, the cells remain in a suspended stage."
- During cryopreservation, biological cells are cooled to very low temperatures, which effectively halts all metabolic processes. This state can be described as a "suspended" state because the cells are not actively growing or dividing, yet they remain viable and can be revived later for use in breeding programs or research.

### Step 3: Evaluate the Relationship
Now, we need to evaluate if the reason correctly explains the assertion.
- Since cryopreservation allows for the long-term storage of germplasm by keeping cells in a suspended state, it directly supports the assertion that it is one of the best methods for germplasm storage. The viability of the cells after thawing is crucial for their use in breeding programs, which further validates the assertion.

### Conclusion
Both the assertion and reason are true, and the reason provides a correct explanation for the assertion. Therefore, the answer to the question is that both statements are true, and the reason is the correct explanation of the assertion.

### Final Answer
Both the assertion and reason are true, and the reason is the correct explanation of the assertion.

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