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with the wrong liquid led Tjio and Levan to develop better techniques for staining and counting chromosomes. It allowed researchers for the first time to see and count each chromosome clearly in the HeLa cells with which they were working. They were the first to show that humans have 23 pairs of
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After the war ended, Tjio went to the
Netherlands, whose government provided him with a fellowship for study in Europe. He worked in plant breeding in Denmark, Spain and Sweden. From 1948 to 1959 he did plant chromosome research in
384:. He spent the balance of his career at the NIH in human chromosome research. He was named scientist emeritus in 1992, but maintained a laboratory for the next five years. In 1997, he retired to
290:; 2 November 1919 – 27 November 2001), was an Indonesian-born American cytogeneticist. He was renowned as the first person to recognize the normal number of human
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chromosomes rather than 24, as was previously believed. This was important for the study of developmental disorders, such as
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and later known as
Indonesia. His father was a photographer. Tjio was educated in Dutch colonial schools, trained in
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in college, and did research on potato breeding. He was imprisoned for 3 years and tortured by the
Japanese in a
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490:"Photographer, Prisoner, Polyglot: NIDDK's Tjio Ends Distinguished Scientific Career"
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In 1958 Tjio went to the United States and in 1959 he joined the staff of the
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in Spain and spent his summers in Sweden working with
Professor
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465:"Joe Hin Tjio, 82; Research Biologist Counted Chromosomes"
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Tjio was born to
Indonesian parents of Chinese origin in
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on 22 December 1955 at the
Institute of Genetics of the
435:(in Chinese (Taiwan)), pp. 86–91, archived from
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524:"5 Contributions HeLa Cells Have Made to Science"
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298:in Sweden, where he was a visiting scientist.
583:American people of Chinese-Indonesian descent
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588:Indonesian emigrants to the United States
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350:In 1953, a lab mistake involving mixing
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528:Cell Science from Technology Networks
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593:Indonesian people of Chinese descent
463:Saxon, Wolfgang (7 December 2001),
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404:Hereditas vol. 42: pages 1–6, 1956.
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603:American people of Chinese descent
488:McManus, Rich (11 February 1997),
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16:Indonesian geneticist (1919–2001)
522:MacDonald, Anna (13 June 2018).
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113:Joseph P. Kennedy Jr. Foundation
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554:in MedTerms Medical Dictionary
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87:Bogor Institute of Agriculture
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400:The chromosome number of man
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160:Traditional Chinese
174:Simplified Chinese
598:People from Pekalongan
552:Human chromosome count
386:Gaithersburg, Maryland
382:University of Colorado
578:American geneticists
369:on 26 January 1956.
500:(3), archived from
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469:The New York Times
397:Tjio JH, Levan A.
378:Bethesda, Maryland
361:Theophilus Painter
324:concentration camp
296:University of Lund
422:李名揚 (July 2008),
316:Dutch East Indies
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197:Standard Mandarin
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531:. Retrieved
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437:the original
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345:Albert Levan
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328:World War II
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265:Joe Hin Tjio
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218:Southern Min
204:Hanyu Pinyin
150:Joe Hin Tjio
134:Institutions
129:Cytogenetics
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76:Gaithersburg
70:(2001-11-27)
25:Joe Hin Tjio
18:
573:2001 deaths
568:1919 births
292:chromosomes
562:Categories
409:References
352:HeLa cells
308:Pekalongan
302:Early life
54:Pekalongan
46:1919-11-02
366:Hereditas
347:in Lund.
533:25 March
508:3 August
474:3 August
446:3 August
425:台灣癌症醫療之母
341:Zaragoza
320:agronomy
100:Children
326:during
225:Hokkien
334:Career
242:Tâi-lô
126:Fields
108:Awards
92:Spouse
440:(PDF)
429:(PDF)
392:Works
103:1 son
535:2020
510:2011
476:2011
448:2011
433:科學人看
312:Java
65:Died
40:Born
431:,
376:in
228:POJ
180:蒋有兴
166:蔣有興
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