The NIH Record

February 11, 1997
Vol. XLIX, No. 3

Day Care Board Has New Chair, Invites Participation

International Conference Addresses Malaria in Africa

Computer Facility Expands, Absorbs Parklawn Facility

NIH To Monitor Contractor Performance

News Briefs



Study Subjects Sought

U.S. Department of
Health and Human Services

National Institutes of Health

NIH Record Archives

Photographer, Prisoner, Polyglot
NIDDK's Tjio Ends Distinguished
Scientific Career

By Rich McManus

Today is the birthday of the scientist who discovered, some 42 years ago, the correct number of chromosomes in human cells. If you act quickly, you can honor the man and his accomplishment by viewing a modest exhibit in the Lipsett Gallery in Bldg. 10, just outside Lipsett Amphitheater, before it closes Mar. 3.

Dr. Joe Hin Tjio stands beside photographs of his remarkable chromosome studies at the first International Human Genetics Congress in Copenhagen in 1956. His discovery of the correct number of human chromosomes led to much scientific excitement and many invitations to speak and teach.

There you will find 11 remarkable photographs taken by this son of a professional portrait photographer, and a brief summary of his scientific career. The photos document, in plants, insects, mammals and man, chromosomes frozen at precisely that moment in division when they can be seen distinctly as separate, wondrous entities.
M O R E . . .