Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Polymerase chain reaction product of paired lymphocyte (L) and tumour (T) DNA from coamplification of glutathione S-transferase (GST)M1 (271 base pair) and interferon-β (170 base pair) genes. Lane 1 shows a homozygously present GSTM1 allele. Lane 2 shows a homozygously null-GSTM1 allele. M1 is ΦX174-HaeIII digested DNA marker. M2 is ΦX174-HinfI digested DNA marker.
