title: DNA amplification in sea urchin oocytes.
abstract: In situ hybridization of ribosomal RNA withParacentrotus lividus ovaries suggests that ribosomal DNA undergoes amplification in the mononucleolate oocytes of this sea urchin.
authors.affiliation: Institute of Comparative Anatomy, University of Palermo, 90123, Palermo, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Sconzo
authors.affiliation: Institute of Comparative Anatomy, University of Palermo, 90123, Palermo, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Mutolo
authors.affiliation: Institute of Comparative Anatomy, University of Palermo, 90123, Palermo, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Giallongo
authors.affiliation: Institute of Comparative Anatomy, University of Palermo, 90123, Palermo, Italy.
authors.forename: M G
authors.initials: MG
authors.lastname: di Bernardo
authors.affiliation: Institute of Comparative Anatomy, University of Palermo, 90123, Palermo, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Giudice
keywords: Amplification; Nucleoli; Sea urchin