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 …

A 2.91-billion base pair (bp) consensus sequence of the euchromatic portion of the human
genome was generated by the whole-genome shotgun sequencing method. The 14.8-billion …

Drosophila melanogaster plays an important role in molecular, genetic, and genomic studies
of heredity, development, metabolism, behavior, and human disease. The initial reference …

Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis
and the fusion of two gametes of different sexes or mating types. Sex-determination …

The past decade has seen a major increase in the study of noncoding RNAs (ncRNAs).
However, there remains a great deal of confusion and debate over the levels of functionality …

We review some recently published results on sex chromosomes in a diversity of species.
We focus on several fish and some plants whose sex chromosomes appear to be 'young', as …

The female reproductive tract is where competition between the sperm of different males
takes place, aided and abetted by the female herself. Intense postcopulatory sexual …

Background Heteromorphic sex chromosomes have evolved repeatedly across diverse
species. Suppression of recombination between X and Y chromosomes leads to …

Drosophila melanogaster spermatids undergo dramatic morphological changes as they
differentiate from small round cells approximately 12 μm in diameter into highly polarized …

Rationale: Primary ciliary dyskinesia (PCD) is a genetically heterogeneous disorder
characterized by recurrent infections of the airways and situs inversus in half of the affected …