New Sex Determining Mechanism in a Mammal

Abstract

ONE female and two males of the small Indian mongoose (Herpestes auropunctatus Hodgson, Viverridae, Carnivora) were investigated. The chromosomes were examined in acetic orcein squash preparations from bone marrow and testis. The chromosome number was found to be 36 in the female and 35 in the two males (Table 1). The female has two X-chromosomes and the male one (Fig. 1). No visible Y-chromosome is present in the male.

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FREDGA, K. New Sex Determining Mechanism in a Mammal. Nature 206, 1176 (1965) doi:10.1038/2061176a0

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