1.   Ronni flushed to her hair roots, as Silvia continued to bounce and grin across at her.

2.   Ronni blushed to her hair roots.

3.   Hair roots easily dry out.

4.   The chromosomal material was obtained from cheek scrapings and hair roots.

5.   The most reliable DNA test can analyze bodily fluids or hair roots and identify the source to a certainty of one in several billion.

6.   When electric current is applied, the hair root is destroyed.

7.   But they were given a clean bill of health by the one-month investigation, which included a chemical analysis of their hair roots, Dewanoumi said.