The sex chromosomes in birds are designated Z and W, and the male is the homomorphic sex (ZZ) and the female heteromorphic (ZW). In most avian species the Z chromosome is a large chromosome, usually ...

Last year, labs around the world starting selling blood tests that tell you how long you will live. Sort of. The tests measure telomeres, the little caps of DNA at the tips of chromosomes that shorten ...

Occurring in the genomes of most living organisms, transposable elements (TEs) are short DNA sequences that have the ability change their position. By means of various molecular mechanisms – so-called ...

The signs of aging show up in our genes as the protective caps on the ends of packets of our DNA, called chromosomes, gradually wear away over time. Now, scientists have found that the length of these ...

Don't miss the big stories. Like us on Facebook. QUECHEE — Anyone who has visited the Vermont Institute of Natural Science Nature Center for up-close experiences with owls, hawks and other raptors may ...

THE complete sequence of the human X chromosome was published in Nature this week. The work shows that large segments of it match parts of normal chromosomes in birds, confirming the X chromosome’s ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...