Final answer:
The DNA in wood can last for a very long time, but it is not the most ideal material for preserving DNA due to the presence of enzymes that can degrade it. Factors like temperature, humidity, and exposure to sunlight can also affect DNA preservation in wood. Extracting usable DNA becomes more challenging as the age of the wood increases.
Step-by-step explanation:
The DNA in wood can last for a very long time under the right conditions. However, wood is not the best material for preserving DNA compared to other substances like bones or teeth. The main reason for this is that wood contains enzymes that can degrade DNA over time.
Scientists have been able to extract and analyze DNA from wood that is thousands of years old, but it becomes increasingly challenging as the age of the wood increases. Factors like temperature, humidity, and exposure to sunlight can also affect the preservation of DNA in wood.
Overall, while DNA can last in wood for a significant amount of time, it is important to consider the specific conditions and age of the wood when determining the viability of extracting usable DNA.