“…We could assume the existence of a single functional 5S rDNA site in the chicken genome on chromosome 9. However, this assumption would conflict with the earlier descriptions of 2 [Krol et al, 1981;Lazar et al, 1983] and even 3 [Keith et al, 1986] 5S rRNA types from various somatic tissues of the chicken. The alignment of 5S rDNA sequences with the available 5S rRNA sequences of the two types [Lazar et al, 1983] shows that 5S rRNA genes located on chromosome 9 correspond to 5S rRNA type I (NCBI M13920, online suppl.…”