Many biologists now say that step may have destroyed potential genetic clues to the culprit's identity.

Typically, forensic specialists examine blood and hair for genetic clues to identities.

Such genetic clues could have given investigators the evidence necessary to identify the perpetrators.

The murder of two girls in an English village is solved through genetic clues.

Writing in the journal Blood in May, he reported there was evidence of a genetic clue that could identify people at high risk for cancer.

For weeks, beginning soon after the first anthrax attacks, federal scientists scrambled to find genetic clues that might help them track the weapon's provenance.

Similar genetic clues, called "markers," have also been found recently for several other less familiar diseases.

For example, they approved the destruction of anthrax samples stored in Iowa, though some scientists now suspect those samples contained helpful genetic clues.

Researchers identify genetic clues to type 2 diabetes.

Researchers are now looking for genetic clues to the stress syndrome.