Doctors often use the polymerase chain reaction test to detect fragments of a virus gene in specimens from patients.

The probe detects male-specific restriction fragments in both species as well as several fragments shared by males and females (Fig. 1 a ).

Older tests often detected other, inactive fragments.

In children, polymerase chain reaction sequencing of urine can detect fragments of the infectious agent.

In addition, the "restriction site-free" segment of the vector guaranteed that all detected fragments within the detection window stemmed from restriction sites within the cDNAs.

They detect fragments of genetic material as input, splice together these fragments and form a single output.

The methods we used did not allow us to detect such hypothetical proteolytic fragments.

The findings significantly advance those that Columbia University researchers reported in December 1994, when they used a new technique to help detect molecular fragments from genes of what they believed was the Kaposi's sarcoma virus.

The tests use proprietary algorithms developed by Chronix researchers to detect, analyze and identify cancer-related fragments of circulating DNA that are released into the bloodstream by apoptotic cells.

Later the same month, a superficial survey of the incident site detected fragments of a passenger car and clothes, but the investigators decided not to dig deeper.