rs17293443(C;C)

Slightly higher odds of giving birth to fraternal twins

Magnitude
1.5Minor
Repute
Not rated
Frequency
2%Average of 11 populations
On SNPedia
rs17293443(C;C)
Gene
SMAD3

Frequency

Share of people with C;C in each HapMap population.

  • Tuscan8%
  • European ancestry (Utah)5%
  • Han Chinese (Beijing)2%
  • Gujarati Indian1%
  • Japanese (Tokyo)<1%
  • Maasai (Kenya)<1%
  • Yoruba (Nigeria)0%
  • African ancestry (Southwest US)0%
  • Chinese (Denver)0%
  • Luhya (Kenya)0%
  • Mexican ancestry (Los Angeles)0%

Other genotypes of rs17293443

  1. C;TNot ratedslightly higher odds of giving birth to fraternal twinsMinor · 1.514% of people
  2. T;TGoodcommon/normalTypical · 0.084% of people

All about rs17293443

Notes

From SNPedia

see discussion at rs17293443

Source and license

Adapted from rs17293443(C;C) on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.