Sex chromosomes

Recent articles

Photograph of a cardinal with male-typical red feathers on one side and more drab, female-typical feathers on the other.

What birds can teach us about the ‘biological truth’ of sex

Part of our job as educators is to give students a deeper understanding of the true diversity of sex and gender in the natural world.

By Nicole M. Baran
22 April 2025 | 7 min read

Explore more from The Transmitter

DNA strand

Exon-skipping approach boosts levels of key Rett syndrome protein

Deleting a small region of the MECP2 gene partially restored function in neurons derived from people with Rett-associated variants.

By Giorgia Guglielmi
20 March 2026 | 5 min read
Collage with a portrait of Caitlin Vander Weele in the foreground.

Frameshift: How Caitlin Vander Weele made science communication her business

Her favorite part of research was talking about it. So she left academia and turned that passion into a successful company.

By Katie Moisse
19 March 2026 | 6 min read
Research image of senescing cells.

Signs of aging vary across brain cells

Senescence presents differently depending on the cell type, toxic trigger and neighboring cells, two new studies find.

By Claudia López Lloreda
18 March 2026 | 4 min read