ScienceAugust 8, 2026

pseudoautosomal

SOO-doh-aw-tuh-SOH-muhl

Definition

Relating to specific regions on sex chromosomes that act like autosomes, allowing them to pair and exchange genetic material during meiosis.

Etymology

The word combines the Greek 'pseudo' meaning 'false' or 'apparent' with 'autosomal,' referring to non-sex chromosomes, reflecting its biological nature as a region that mimics the behavior of non-sex chromosomes.

In the news

The article uses the term to describe specific segments of the rat genome where genes behave similarly between the X and Y chromosomes, which is critical for mapping genetic disease models.

Telomere-to-telomere brown rat genome could sharpen disease research models

Read the full article ↗

medicalxpress.com

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