nucleolar organizer region
Science› Biotechnology and Genetics
Food Biotechnology
(Abbreviation: NOR). A chromosomal segment containing a large array of genes that encode ribosomal RNA; located at the secondary constriction of specific chromosomes.
Science› Biotechnology and Genetics
(Abbreviation: NOR). A chromosomal segment containing a large array of genes that encode ribosomal RNA; located at the secondary constriction of specific chromosomes.