Detachment Frequency of Attached-X Chromosomes in Autosomal Structural Heterozygotes of Drosophila Melanogaster

Publisher Website
Google Scholar
Abstract
An expt. was arranged to determine whether autosomal inversions influence the rate of detachment of XX by exchange with Y. The greatest difference in detachment rate was only 1.4 times the standard error and these results provide no acceptable evidence for a difference in detachment rate of XX in structural homozygotes and heterozygotes. Consistent with these results are the propositions that: detachment of XX by exchange with Y is a mitotic rather than a meiotic process, or that detachment does not take place by ordinary crossing-over; segregation of XX from Y at meiosis is not dependent upon crossing-over between XX and Y.
Keywords