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Scientists discovered 10 lakh years old DNA, know where and how such old samples were found

DNA from ancient microorganisms has been discovered beneath the ocean floor in Antarctica. Some of this DNA dates back to about one million years ago. A new study has revealed that it is the oldest DNA ever discovered from ocean floor sediments. The special thing is that the scientists had collected the samples by mistake, that is, they had no idea that a big discovery would emerge after their investigation. The samples collected by the scientists are known as sedaDNA. The study related to this has been published in Nature Communications magazine. In this sesaDNA samples have been analyzed.

of live science Report According to the report, the team of researchers looked closely at the damage patterns inside the DNA fragments to determine how old they were. The oldest fragments are about one million years old. Scientists are not sure which species the oldest sedDNA belongs to. They are said to be related to the eukaryote. However, most of the samples are related to diatoms. It is a type of phytoplankton, which is still present in the world’s oceans today. These samples were taken from the Scotia Sea in Antarctica.

Linda Armbrecht, a researcher at the Institute for Marine and Antarctic Studies at the University of Tasmania in Australia and lead author of the study, said in a statement that these fragments are the oldest evidenced marine seDNA discovered to date. He said that the samples are very well protected due to low temperature, low oxygen concentration and no UV radiation. Ancient DNA sheds light on how the region’s ecosystem may be affected by climate change.

Antarctica is considered to be the most sensitive region in the world. Antarctica, the heartland of giant glaciers, is melting faster than expected. A recent report revealed that the coastal glaciers of Antarctica are rapidly shedding icebergs. A series of rapid ice melts has more than doubled previous estimates of the damage caused by the melting of the world’s largest ice sheet in the past 25 years. Many studies have shown that climate change is rapidly weakening Antarctica’s huge floating ice caps and causing tremendous sea level rise.

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