Chitons overcome evolutionary constraints through unprecedented genomic dynamism, with extensive chromosomal rearrangements and duplications despite about 300 million years of morphological stasis.

A deadly deer disease has found its way into the urban deer population in Cranbrook, in B.C.'s Kootenay region. Chronic wasting disease (CWD) was detected in a female white-tailed deer during a ...

Cluster B personality disorders affect a person’s emotions and behaviors, leading to actions that others tend to consider dramatic, overly emotional, or erratic. A personality disorder is a ...

Morgan's experiments are not only fundamental to our knowledge of heredity; they have also made an animal respectable for science, which previously only a few specialists had worked with: the fruit, ...

Females have one active X chromosome and one dormant X chromosome in each cell. But a study suggests that genes on the dormant X get "reawakened" later in life, potentially giving the brain a boost.

The planned changes include reinstating a version of chromosome testing that was discontinued in the 1990s, requiring athletes who compete in the female category to submit to a cheek swab or dry blood ...

The Lycosidae family, known for its diverse spiders with varying ecological habits and behavioral traits, has seen limited exploration of its karyotype and genome size. Methods: We utilized an ...

Early work on chromosome numbers in meiotic division used molluscs, and interest in understanding patterns in chromosome numbers across species also led to fundamental insights in animal polyploidy.