genes and chromosomes

Dynamic duos: Why science loves twins

One of the broadest studies of twins in the United States suggests that our genes tend to influence the diseases that afflict us more than where we live, according to research published Monday in the journal Nature Genetics.

Congrats on the new baby. Would you like a DNA screening test?

Every baby born in the United States is given a routine blood test to screen for dozens of inherited medical conditions. Now, the U.S. National Institutes of Health is exploring whether to use DNA sequencing to screen newborn babies for additional genetic abnormalities and disorders. Such DNA testing would likely complement, but not replace, the current routine blood tests.