Show Notes
This release contains only the music track from Base by Base Episode 112.
Song title: Not One Genome, Two Stories
Original Base by Base episode: 112: Local Genetic Sex Differences in Quantitative Traits
Article metadata:
Article title: Local genetic sex differences in quantitative traits
Journal: Nature Communications
DOI: 10.1038/s41467-025-62504-4
Reference: Uffelmann E, de Leeuw C, Schipper M & Posthuma D. Local genetic sex differences in quantitative traits. Nature Communications (2025) 16:7232. doi:10.1038/s41467-025-62504-4
Lyrics:
Verse 1
Same sky of letters, same long-code view,
But the signal bends depending who’s coming through.
In a million-base window the truth gets loud,
Some lights hit different in the data crowd.
Pre-Chorus
Zoom in close where the averages break,
Raw to standardized—watch the meaning shift shape.
If variance moves, the headline can lie,
So we test the scale before we testify.
Chorus
Not one genome, two stories in the light,
Locus by locus, the numbers don’t align.
Sometimes they mirror, sometimes they collide,
Sex in the architecture, hidden inside.
Read it in the local, don’t blur it in the whole—
Different effect sizes, different kinds of control.
Verse 2
Across a hundred traits, it keeps showing up,
At least one region that won’t match the cut.
Local heritability, stronger here than there,
And power tilts the findings when the samples aren’t fair.
Some correlations flip below the line,
Like opposite echoes in the same bloodline.
Bridge
You can’t fine-map a story with a blurry frame,
One locus can hold more than one name.
Still, clues stay sharp when you follow the flame:
Hormone-wired switches, lipids shifting aim.
So build your models with a sex-aware view,
Or miss the biology staring back at you.
Final Chorus
Not one genome, two stories in the light,
Locus by locus, the numbers don’t align.
Sometimes they mirror, sometimes they collide,
Sex in the architecture, hidden inside.
Keep your eyes on the scale, let the tests be the guide—
From raw to standardized, let the truth decide.
