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Tag Archives: DNA

New blood test may transform the way cancer is monitored and treated

Stanford University scientists have described a new type of test that can detect genetic mutations in minute amounts of DNA released from cancer cells into the blood. The test, which is called single color digital PCR, requires only a fraction of a tube of blood and can detect as few as three mutation-bearing molecules in a single reaction. According to ...

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Attitudes on human genome editing vary, but reach consensus on holding talks

An international team of scientists announced they had successfully edited the DNA of human embryos. As people process the political, moral and regulatory issues of the technology — which nudges us closer to nonfiction than science fiction — researchers at the University of Wisconsin-Madison and Temple University show the time is now to involve the American public in discussions about ...

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Early puberty may mean less time in education for girls

The age at which girls have their first period may influence how long they stay in education. The findings come from a study in which researchers have tried to untangle the effect of the age at first period from other complex factors that might affect time spent in education, revealing that young women who start their periods earlier may spend ...

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Scientists discover unknown virus in ‘throwaway’ DNA

A chance discovery has opened up a new method of finding unknown viruses. In research published in the journal Virus Evolution, scientists from Oxford University’s Department of Zoology have revealed that Next-Generation Sequencing and its associated online DNA databases could be used in the field of viral discovery. They have developed algorithms that detect DNA from viruses that happen to ...

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Ancient Extinct Human Species DNA Still Present in Melanesian Residents: Study

Scientists were surprised to find fragments of DNA of extinct human species in 35 people living in islands off New Guinea in Melanesian tribes. The DNA was traceable to two early human species: Denisovans, whose remains were found in Siberia, and Neandertals, first discovered in Germany. D. Andrew Merriwether, a molecular anthropologist at Binghamton University, collected the modern-day blood samples ...

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