The human Y chromosome is intriguing not only because it harbours the master-switch gene
that determines gender but also because of its unusual evolutionary history. The Y …

Heterochromatin is both necessary for the expression of heterochromatic genes and
inhibitory for the expression of euchromatic genes. These two properties of heterochromatin …

We review what is known about the transcriptional inactivation and condensation of
heteromorphic sex chromosomes in contrast to the activation of homomorphic sex …

We determined the distribution of 11 different transposable elements on Drosophila
melanogaster mitotic chromosomes by using high-resolution fluorescent in situ hybridization …

For males with idiopathic sterility, a molecular screen specific for small lesions
(microdeletions) in interval 6 of the Y chromosome was set up using 29 Y-DNA probes. A “de …

Larval and pupal testes of Drosophila melanogaster were fixed with a methanol/acetone
fixation procedure that results in good preservation of cell morphology; fixed cells viewed by …

In this review of the knowledge of heterochromatin in Drosophila melanogaster, the structure
of the heterochromatin is described, and various functional elements (the Y-chromosome …

Fluorescence RNA: RNA in situ hybridization studies in various larval and adult cell types of
Drosophila melanogaster showed that the noncoding hsr-omega nuclear (hsrω-n) …

We have used a series of 30 DNA probes previously mapped to the long arm of the human Y
chromosome, to screen a panel of 21 patients with structural abnormalities in Yq, by …

The heterochromatic state of the Drosophila Y chromosome has made the cloning and
identification of Y-linked genes a challenging process. Here, we report application of a …