A Method for the Culture of Leucocytes of the Guinea Pig (Cavia cobaya) with Karyotype Analysis

Abstract
A technique is described which facilitates the culture of guinea pig leucocytes. Mitotic indices with this technique range from·to 9.3 with a mean of 6.4. The modal number of 64 in the diploid form confirms that found by others with fixed tissue cells. The ready identification of the X chromosome because of its distinctive shape suggests the possibility of studying the influence of experimental conditions on its morphology.

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