# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/nettie-stevens
# Generated: 2026-08-14T17:18:22.019Z

schema: https://schema.org/Person
url: "https://fame.am/person/nettie-stevens"
name: "Nettie Stevens"
slug: "nettie-stevens"
description: "Nettie Maria Stevens was the American geneticist who discovered sex chromosomes. In 1905, soon after the rediscovery of Mendel's paper on genetics in 1900, she observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome. When the sperm with the large chromosome fertilized eggs, they produced female offspring, and when the sperm with the small chromosome fertilized eggs, they produced male offspring. The pair of sex chromosomes that she studied later became known as the X and Y chromosomes."
tagline: "American geneticist (1861–1912)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Nettie_Maria_Stevens.jpg?width=1200"
gender: "female"
country:
  name: "United States"
  isoCode: "US"
birthDate: "1861-07-07"
deathDate: "1912-05-04"
livingStatus: "DECEASED"
scores:
  popularity:           52.46
  momentum:             0
  historical:           21.717396
  currentAttention:     0.9199999999999999
  sourceConfidence:     60
  profileCompleteness:  50
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://ko.wikipedia.org/wiki/%EB%84%A4%ED%8B%B0_%EC%8A%A4%ED%8B%B0%EB%B8%90%EC%8A%A4"
    title: "네티 스티븐스"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%86%D9%8A%D8%AA%D9%8A_%D8%B3%D8%AA%D9%8A%D9%81%D9%86%D8%B2"
    title: "نيتي ستيفنز"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%86%D9%8A%D8%AA%D9%89_%D8%B3%D8%AA%D9%8A%D9%81%D9%86%D8%B2"
    title: "نيتى ستيفنز"
    type:  "WIKIPEDIA"
  - url: "https://ast.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D9%86%D8%AA%DB%8C_%D8%A7%D8%B3%D8%AA%DB%8C%D9%88%D9%86%D8%B2"
    title: "نتی استیونز"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%A8%E0%A7%87%E0%A6%9F%E0%A6%BF_%E0%A6%B8%E0%A7%8D%E0%A6%9F%E0%A6%BF%E0%A6%AD%E0%A7%87%E0%A6%A8%E0%A6%B8"
    title: "নেটি স্টিভেনস"
    type:  "WIKIPEDIA"
  - url: "https://bs.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Nettie_Stevensov%C3%A1"
    title: "Nettie Stevensová"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%9D%CE%AD%CF%84%CE%B9_%CE%A3%CF%84%CE%AF%CE%B2%CE%B5%CE%BD%CF%82"
    title: "Νέτι Στίβενς"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%86%D8%AA%DB%8C_%D8%A7%D8%B3%D8%AA%DB%8C%D9%88%D9%86%D8%B2"
    title: "نتی استیونز"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%A0%D7%98%D7%99_%D7%A1%D7%98%D7%99%D7%91%D7%A0%D7%A1"
    title: "נטי סטיבנס"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://is.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://ka.wikipedia.org/wiki/%E1%83%9C%E1%83%94%E1%83%A2%E1%83%98_%E1%83%A1%E1%83%A2%E1%83%98%E1%83%95%E1%83%94%E1%83%9C%E1%83%A1%E1%83%98"
    title: "ნეტი სტივენსი"
    type:  "WIKIPEDIA"
  - url: "https://ml.wikipedia.org/wiki/%E0%B4%A8%E0%B5%86%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%80_%E0%B4%B8%E0%B5%8D%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%80%E0%B4%B5%E0%B5%BB%E0%B4%B8%E0%B5%8D"
    title: "നെറ്റീ സ്റ്റീവൻസ്"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Nettie_Stevens"
    title: "Nettie Stevens"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q433487"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump