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Variations in the accessory chromosomes in metaphase and anaphase of the first spermatocytes of the albino rat

โœ Scribed by Ezra Allen

Publisher
John Wiley and Sons
Year
1940
Tongue
English
Weight
491 KB
Volume
66
Category
Article
ISSN
0362-2525

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โœฆ Synopsis

I n my study of spermatogenesis of the albino rat (Allen, 'IS), only an X was reported. Subesquent examination of the material then used, together with some more recently prepared, has brought me to the conclusion that there is also a Y chromosome, as reported by certain other observers to be mentioned below. In connection with this study, variations in size and behavior were noted in the two accessories, and thcse are recorded in this paper. Hundreds of first spcrmatocyte cells in metaphase and anapliase were studied.

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