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18 results
  • Centromeres were derived from telomeres during the evolution of the eukaryotic chromosome. [Journal Article]
    Proc Natl Acad Sci U S A 2007; 104(25):10542-7Villasante A, Abad JP, Méndez-Lago M
  • The centromere is the DNA region of the eukaryotic chromosome that determines kinetochore formation and sister chromatid cohesion. Centromeres interact with spindle microtubules to ensure the segregation of chromatids during mitosis and of homologous chromosomes in meiosis. The origin of centromeres, therefore, is inseparable from the evolution of cytoskeletal components that distribute chromosom…
  • Transposon Tn917PF1 mutagenesis in Bacillus licheniformis. [Journal Article]
    Microbiology 1994; 140 ( Pt 11):3091-7Prágái Z, Trân SL, … Sik T
  • The plasmid pTnPFl containing the transposon Tn917PF1 was introduced into the protoplasts of two Bacillus licheniformis strains in the presence of polyethylene glycol. Transpositions were produced at high temperature which inhibited plasmid replication and kanamycin was used for selection.Transposon Tn917PF1 was inserted randomly into the bacterial chromosome,producing different auxotrophic, prop…
  • The function of mitochondrial genes in Neurospora crassa. [Journal Article]
    Can J Genet Cytol 1976; 18(3):397-409Bertrand H, Szakacs NA, … Harrigan JC
  • The 18 extranuclear mutants of Neurospora crassa, without exception, have abnormal mitochondrial respiratory systems. On the basis of genetic, phenotypic and physiological criteria, these mutants are divided into four groups: 1) the cytochrome aa3 and b deficient "poky" variants that are defective in mitochondrial ribosomes assembly, 2) the cytochrome aa3 deficient mutants, [mi-3] and [exn-5], th…
  • Genophore homologies among compatible nocardiae. [Journal Article]
    J Bacteriol 1972; 109(2):720-9Clark JE, Brownell GH
  • Deoxyribonucleic acid (DNA) reassociation analyses were employed to determine the molecular relationships between recombinable nocardiae. Analysis of the compatibility system of Nocardia erythropolis Mat-Ce and Mat-cE mating strains demonstrated the existence of extensive homology under both exacting and nonexacting conditions. Labeled N. erythropolis Mat-cE DNA reassociated equally as well with …
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