Though not biologically related, friends are as “related” as fourth cousins, sharing about 1% of genes. That is a study, published from the University of California and Yale University in the Proceedings of the National Academy of Sciences, has .
The study is a genome-wide analysis conducted 1,932 unique subjects which pairs of unrelated friends and unrelated strangers. The same people were used in both . 1. A.what B.why C.how D.when
2. A.defended B.concluded C.withdrawn D.advised
3. A.for B.with C.by D.on
4. A.separated B.sought C.compared D.connected
5. A.tests B.objects C.samples D.examples