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Filtering by: Creator Rowell, John David Remove constraint Creator: Rowell, John David Advisor Storm, Robert M. Remove constraint Advisor: Storm, Robert M.

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  • Experimental hybridization between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater

    Creator:
    Haertel, John David
    Abstract:
    Experimental crosses between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater, resulted in viable hybrids. Reciprocal differences at the time of fertilization are indicated. A high level of success in producing viable hybrids can be obtained if Rana pretiosa pretiosa is the female of the parent species, The...
    Resource Type:
    Masters Thesis
    Full Text:
    Baird and Girard and Rana cascadae Slater AN ABSTRACT OF THE THESIS OF JOHN DAVID HAERTEL for the M

  • A comparative study of the chromosomes from five species of the genus Rana

    Creator:
    Haertel, John David
    Abstract:
    The karyotypes of five species of ranid frogs were determined from metaphase plates of bone marrow cells. The colchicine, hypotonic- citrate, blaze-dry technique was used to obtain the plates. Morphometric datawere obtained from the karyotypes and compared with other species of the genus Rana. Like most other members of the...
    Resource Type:
    Dissertation
    Full Text:
    of the genus Rana AN ABSTRACT OF THE THESIS OF JOHN DAVID HAERTEL for the (Name of student) in