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Literature DB >> 6437772

Bivalent behavior in Drosophila melanogaster males containing the In(1)sc4Lsc8RX chromosome.

Abstract

The sex chromosome bivalent was examined in Drosophila melanogaster males possessing the In(1)sc4Lsc8R X chromosome. Three-dimensional reconstructions from electron micrographs of serially cut thin sections were made. A large proportion of the kinetochores of In(1)sc4Lsc8R/Y bivalents did not face opposite poles during metaphase I and anaphase I. This suggests that In(1)sc4Lsc8R/Y bivalents may have difficulty achieving bipolar stability. Delay in achieving bipolar stability could contribute to the nondisjunctional behavior found in In(1)sc4Lsc8R/Y males.

Entities: Species

Mesh：

Year: 1984 PMID： 6437772 DOI： 10.1007/bf00292400

Source DB: PubMed Journal: Chromosoma ISSN： 0009-5915 Impact factor: 4.316

11 in total

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5 in total