0 212222211Reads by AI crawlersClaude0ChatGPT2Google · Gemini0Perplexity0Meta AI2Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others11Total21Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
Who was studied 15,731 British ancestry red hair individuals, 283,920 British ancestry brown or black hair individuals.
The effect
The reported allele is T; the catalogue records no effect size
; p = 2 × 10−308.
How common The T allele had a frequency of about 27% in the people studied.
Where it sits Chromosome 16, band 16q24.3 — inside SPIRE2.
What each result means
C/CNo copy of the version the research linked to Red vs. brown/black hair color. This is the starting point the study compared everyone against.
C/TOne copy of the version the research linked to Red vs. brown/black hair color. That is a smaller link than two copies.
T/TTwo copies of the version the research linked to Red vs. brown/black hair color. That is the strongest link of the three results. A link in a study is not a diagnosis.
Nature communications · 2018 · PMID 30531825 · open access
Questions about rs34357723
What is rs34357723?
rs34357723 is a single position in the genome, in or near the FANCA gene. Published research associates it with red vs. brown/black hair color. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs34357723 linked to?
On MyGeneLog this position is linked to Hair Color. The research behind each link, and its sources, are set out on that condition page.
Does having rs34357723 mean I will get this?
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
Where does the information about rs34357723 come from?
GWAS Catalog, Nature communications 2018, PMID:30531825. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
0 212222211Reads by AI crawlersClaude0ChatGPT2Google · Gemini0Perplexity0Meta AI2Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others11Total21Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
Quoting this page
Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.
Red vs. brown/black hair color (rs34357723). MyGeneLog™. https://www.mygenelog.com/variants/rs34357723