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The nucleolar chromosome in embryos of Rana pipiens

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Summary

Karyotype analyses of prometaphases from medullary plate cells derived from mid-neurulae of Rana pipiens have led to the identification of the nucleolar chromosome and nucleolar organizing region, which is located on the longer arm of a small sub-metacentric chromosome (No. 10).

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Authors and Affiliations

  1. Department of Anatomy, The Medical College of Pennsylvania, 19129, Philadelphia, Pennsylvania, USA

    G. R. Newman, N. Hoffner & M. A. Di Berardino

Authors
  1. G. R. Newman
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  2. N. Hoffner
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  3. M. A. Di Berardino
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Additional information

Supported in part by research grant GB19631X from the Natioal Science Foundation. This study constituted a portion of a dissertation submitted by G. R. N. to the Medical College of Pennsylvania in partial fulfillment of requirements for a Ph. D. degree.

Supported by NDEA and subsequently NSF predoctoral traineeships.

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Newman, G.R., Hoffner, N. & Di Berardino, M.A. The nucleolar chromosome in embryos of Rana pipiens. Experientia 33, 430–432 (1977). https://doi.org/10.1007/BF01922193

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