The oldest seed of Lupinus arcticus excavated from arctic Tundra was germinated and flowered after an estimated record of ---------- of domancy.

Options

A. 2,000 years
B. 10,000 years
C. 20,000 years
D. 1,00,000 years

Answer

To solve the question regarding the oldest seed of Lupinus arcticus and its dormancy period, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Subject**: The question pertains to the seed of Lupinus arcticus, which is a plant species found in the Arctic tundra.

2. **Understand Dormancy**: Dormancy refers to a period during which seeds remain inactive and do not germinate, despite being viable. This can be due to various environmental factors.

3. **Historical Context**: The question mentions that the seed was excavated from the Arctic tundra, indicating that it has been preserved in a cold environment, which is conducive to long-term seed viability.

4. **Research Findings**: According to the information provided in the video transcript, the seed of Lupinus arcticus was germinated after being dormant for an estimated period of 10,000 years.

5. **Conclusion**: Based on the evidence presented, the answer to the question is that the oldest seed of Lupinus arcticus germinated after an estimated record of **10,000 years** of dormancy.

### Final Answer:
The oldest seed of Lupinus arcticus excavated from the Arctic tundra was germinated and flowered after an estimated record of **10,000 years** of dormancy.

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