Chicken globin gene number.

Using complementary DNA prepared from adult chicken globin messenger RNA, we show the existence of 2-3 non-cross-hybridising globin sequences in the chicken genome, each of which is present in only one copy per haploid genome. This was done by solution hybridization to total DNA under conditions of cDNA excess. The data agreses with results of RNA-driven hybridisation of globin complementary DNA, and with protein data.