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  • rRNA
  • Nucleolar dominance is an epigenetic phenomenon that describes the formation of nucleoli around rRNA genes inherited from only one parent in the progeny of an interspecific hybrid. (pnas.org)
  • Each rRNA gene can be transcribed within the nucleolus by RNA polymerase I to produce a primary transcript that is processed to form the 18S, 5.8S, and 25-27S rRNAs (the size depends on species). (pnas.org)
  • patients
  • The study aimed to evaluate the role of nucleolus organizer region [‎NOR]‎ heteromorphism as an etiological factor for parental nondisjunction in Down syndrome by comparing 25 patients affected by Down syndrome, and their parents with a control group of 80 non-affected Egyptians. (who.int)
  • location
  • This function enables you to search for a Keystone Symposia meeting by any word in the meeting title, location, organizer names, meeting summary or sessions (including session names, speaker names and talk titles). (keystonesymposia.org)
  • highly
  • The highly conserved genic regions are separated by a more diverged intergenic spacer (IGS), which in turn contains several subrepeated regions. (genetics.org)
  • double
  • As in other organisms, H3 and H4 co-localized in the same chromosome region in the 11 species where double FISH was performed with the H3 and H4 DNA probes. (springer.com)