XY or ZW? Gecko chromosomes reveal evolution's hidden playbook
Why do humans rely on XY chromosomes to determine sex, while birds use ZW—and many reptiles use neither, letting temperature decide instead? Sex determination is remarkably diverse across the animal kingdom. In genotypic sex determination (GSD), sex is encoded in the genome: XX individuals are female and XY males in humans and most mammals, while in the ZW system, found in birds and some reptiles, males are ZZ and females ZW.
Phys.org
Published by CurrentWire · First coverage
Compiled by CurrentWire News Desk
Summary based on reporting from Phys.org.
Automated coverage analysis
Generated automatically from the coverage listed on this page. CurrentWire adds no editorial claims.
Coverage
1 publication is covering this story.
How CurrentWire compiled this story
Phys.org (phys.org), a Tier B publisher, filed this report on . CurrentWire published this page 1 hour later, on .
Signal breakdown
CurrentWire ranked this story 57 of 100 in the snapshot this page was rendered from.
- Freshness
- 27.5 of 35
- Source authority
- 14 of 20
- Coverage breadth
- 4 of 20
- Geographic relevance
- 3.5 of 10
- Story prominence
- 8 of 10
- Velocity
- 0 of 5
Strongest signal: story prominence, 8 of 10. How each signal is calculated.
Filed under Science · International · News.
CurrentWire is a news discovery platform. This page summarizes and links to original reporting; full articles, imagery and copyright remain with the publishers listed above.