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  • Title: The mitotic and meiotic chromosomes of the muskrat (Ondatra zibethica L.).
    Author: Kihlberg CG, Gustavsson I, Sundt CO.
    Journal: Acta Vet Scand; 1969; 10(2):181-92. PubMed ID: 5354236.
    Abstract:
    The chromosome number of the muskrat (Ondatra zibethica L.) was determined to be 54 in an investigation of the mitotic and meiotic chromosomes. All chromosomes are one-armed with the exception of one small pair which is biarmed. Further, the X chromosome, one of the largest of the complement, seems to have a small secondary arm making possible an identification of the pair. A systematic investigation of the chromosomes, and especially the sex chromosomes at different stages of the spcrmatocytogenesis, has been performed.
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