Proceedings of the Japan Academy, Series B

Online ISSN : 1349-2896
Print ISSN : 0386-2208
ISSN-L : 0386-2208

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Volume 60, Issue 3

Displaying 1-9 of 9 articles from this issue

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A New Tetragonitid Ammonite from Hokkaido

Tatsuro MATSUMOTO

1984 Volume 60 Issue 3 Pages 33-35
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.33

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A New Miocene Otarioid Seal from Japan

Ken-ichi TAKEYAMA, Tomowo OZAWA

1984 Volume 60 Issue 3 Pages 36-39
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.36

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Geological Features of Paleo-Biwa Group as the Basis of Deep Drilling

From the View Point of Recent Chronological Data

Shoji HORIE

1984 Volume 60 Issue 3 Pages 40-42
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.40

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Preliminary Report on the Geological Correlation between the Deep Boring Sequence and the Paleo-Biwa Group around Lake Biwa

Shoji HORIE

1984 Volume 60 Issue 3 Pages 43-45
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.43

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Studies on the Karyotype Differentiation of the Norway Rat. VII

Chromosomes involving Translocations in Offspring born after γ-Irradiation

Tosihide H. YOSIDA

1984 Volume 60 Issue 3 Pages 46-49
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.46

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Studies on the Karyotype Differentiation of the Norway Rat. VIII

Translocation between Autosomes 9 and 18 occurred in an F-344 Strain Rat after γ-Irradiation and its Transmission to Offspring

Tosihide H. YOSIDA

1984 Volume 60 Issue 3 Pages 50-53
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.50

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Somatic and Meiotic Chromosomes of the Small Free-Living Nematode, Caenorhabditis elegans

Tosihide H. YOSIDA, Tamiko SADAIE, Yoshito SADAIE

1984 Volume 60 Issue 3 Pages 54-57
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.54

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The chromosomes of early embryonic cells of the small free-living nematode, C. elegans var. Bristol (N2) hermaphrodite, were observed by conventional Giemsa and G-band staining by the air-drying technique. Twelve diploid chromosomes were observed in the somatic cells and they were classified into six homologous pairs by G-band staining. In the first meiotic cells six tetrads were observed in pachytene and metaphase stages.

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A Preliminary Report on the Phylogeny of Five Balistid Fish in Terms of Several Chromosome Banding Techniques in Combination with a Statistical Analysis

Eita KITAYAMA, Yoshio OJIMA

1984 Volume 60 Issue 3 Pages 58-61
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.58

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Intervening C-band positive-G-band negative regions were observed just adjacent to the secondary constrictions on the largest acrocentric chromosome pair of Odonus niger and Meliehthys vidua, which intensely indicate the occurrence of tandem translocation event. Since the karyotypes of the five balistid fish studied comprised solely acrocentrics, the karyotypic changes by the tandem translocation could be used to precisely analyse their phyletic genetic evolution.

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A Case of Reciprocal Translocation between the Long Arm of No. 7 and the Long Arm of No. 14 Chromosome

Tetsuji KADOTANI, Yoko WATANABE

1984 Volume 60 Issue 3 Pages 62-64
Published: 1984
Released on J-STAGE: October 10, 2006

DOIhttps://doi.org/10.2183/pjab.60.62

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