It's ethically OK to investigate mitochondrial replacement in humans so long as certain safeguards are in place, according a US National Academies of Sciences, Engineering, and Medicine report.
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Kuwait says it will alter its law requiring citizens and visitors to provide DNA samples, New Scientist reports.
In Science this week: convergent evolution in bird hemoglobin, and more.
The Wall Street Journal speaks with patients affected by questionable test results from Theranos.
Researchers link variants in TACR3 to hot flashes during menopause, Live Science reports.