Most animals reproduce sexually, but the genetic and molecular mechanisms that determine
the eventual sex of each embryo vary remarkably. DM domain genes, which are related to …

Most animals are sexually dimorphic, but different taxa have different sex-specific traits.
Despite major differences in the genetic control of sexual development among animal …

The only molecular similarity in sex determination found so far among phyla is between the
Drosophila doublesex (dsx) and Caenorhabditis elegans mab-3 genes. dsx and mab-3 …

Most metazoans occur as two sexes. Surprisingly, molecular analyses have hitherto
indicated that sex-determining mechanisms differ completely between phyla. Here we …

In the XX/XY sex-determining system, the Y-linked SRY genes of most mammals and the
DMY/Dmrt1bY genes of the teleost fish medaka have been characterized as sex …

Metalloproteins play structural and catalytic roles in gene expression. The metalloregulatory
proteins are a subclass that exerts metal-responsive control of genes involved in respiration …

All animals exhibit innate behaviors that are specified during their development. Drosophila
melanogaster males (but not females) perform an elaborate and innate courtship ritual …

Despite the bewildering number of cell types and patterns found in the animal kingdom, only
a few signalling pathways are required to generate them. Most cell–cell interactions during …

▪ Abstract For 600 million years, the two best-understood metazoan species, the nematode
Caenorhabditis elegans and the fruit fly Drosophila melanogaster, have developed …

Sex-determining mechanisms are highly variable between phyla. Only one example has
been found in which structurally and functionally related genes control sex determination in …