1.   Because the cohen genetic signature is rare or absent in all non-Jewish populations tested so far, the findings support the Lemba tradition of Jewish ancestry.

2.   Already, doctors are checking the genetic signature of a tumor before recommending treatment.

3.   But the type and abundance of the lineages in each population serve as genetic signature by which to compare different populations.

4.   Genetic signatures may make other types of screening, like mammograms, more useful.

5.   In each community, the women carry very few genetic signatures on their mitochondrial DNA, a genetic element inherited only through the female line.

6.   Some of his subjects had the cohen genetic signature but with slight variations caused by mutations.

7.   Sykeses who do not carry the genetic signature have presumably had a non-paternity event somewhere in their ancestry.

8.   To interpret the patterns, scientists are testing hundreds of chemicals with known toxicities to develop a database of genetic signatures against which the unknown compounds can be compared.