FACTOID # 147: France is the top destination in the world for tourists, accounting for 11 percent of all tourist arrivals worldwide.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Alfred Hershey

Alfred Day Hershey (December 4, 1908May 22, 1997) was an American Nobel Prize-winning bacteriologist. December 4 is the 338th day (339th on leap years) of the Gregorian calendar. ... 1908 (MCMVIII) was a leap year starting on Wednesday (link will take you to calendar). ... May 22 is the 142nd day of the year in the Gregorian calendar (143rd in leap years). ... 1997 (MCMXCVII) was a common year starting on Wednesday of the Gregorian calendar. ... Nobel Prize medal. ... Microbiology (in Greek micron = small and biologia = studying life) is the study of microorganisms, including unicellular (single-celled) eukaryotes and prokaryotes, fungi, and viruses. ...

He was born in Owosso, Michigan and received his B.S. in chemistry at Michigan State University in 1930 and his Ph.D. in bacteriology in 1934, taking a position shortly thereafter at the Department of Bacteriology at Washington University in St. Louis. Image File history File links Download high-resolution version (1200x955, 67 KB) Alfred Hershey, source: http://www. ... Official language(s) None (English, de-facto) Capital Lansing Largest city Detroit Area  Ranked 11th  - Total 97,990 sq mi (253,793 km²)  - Width 239 miles (385 km)  - Length 491 miles (790 km)  - % water 41. ... Michigan State University (MSU) is a public university in East Lansing, Michigan. ... 1930 (MCMXXX) was a common year starting on Wednesday (link is to a full 1930 calendar). ... Microbiology (in Greek micron = small and biologia = studying life) is the study of microorganisms, including unicellular (single-celled) eukaryotes and prokaryotes, fungi, and viruses. ... 1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ... Microbiology (in Greek micron = small and biologia = studying life) is the study of microorganisms, including unicellular (single-celled) eukaryotes and prokaryotes, fungi, and viruses. ... Washington University redirects here. ...


He began performing experiments with bacteriophages with Italian-American Salvador Luria and German Max Delbrück in 1940, and observed that when two different strains of bacteriophage have infected the same bacteria, the two viruses may exchange genetic information. ... Salvador Edward Luria (August 13, 1912 – February 6, 1991) was an American microbiologist whose pioneering work on phages helped open up molecular biology. ... Max Delbrück (September 4, 1906 - March 9, 1981) was a German biologist. ... 1940 (MCMXL) was a leap year starting on Monday (the link is to a full 1940 calendar). ... A bacteriophage, artificially coloured red A bacteriophage (from bacteria and Greek phagein, to eat) is a virus that infects bacteria. ... A common alternate meaning of virus is computer virus. ... A DNA sequence (sometimes genetic sequence) is a succession of letters representing the primary structure of a real or hypothetical DNA molecule or strand, The possible letters are A, C, G, and T, representing the four nucleotide subunits of a DNA strand (adenine, cytosine, guanine, thymine), and typically these are...


He moved to Cold Spring Harbor, New York in 1950 to join the Carnegie Institution of Washington's Department of Genetics, where he performed the famous blender experiment with Martha Chase in 1952. This experiment provided more evidence that DNA, not protein, was the genetic material. Cold Spring Harbor is a hamlet (and census-designated place) located in Suffolk County, New York on the North Shore of Long Island. ... 1950 (MCML) was a common year starting on Sunday (link will take you to calendar). ... The Carnegie Institution of Washington (CIW) is a foundation established by Andrew Carnegie in 1902 to support scientific research. ... Genetics (from the Greek genno γεννώ= give birth) is the science of genes, heredity, and the variation of organisms. ... The Hershey-Chase experiment was a series of experiments conducted in 1952 by Alfred Hershey and Martha Chase that identified DNA to be the genetic material of phages and, ultimately, of all organisms. ... Martha Cowles Chase was a young laboratory assitant in the early 1950s when she participated in one of the most famous experiments in 20th century biology. ... 1952 (MCMLII) was a Leap year starting on Tuesday (link will take you to calendar). ...


He became director of the Carnegie Institution in 1962 and was awarded the Nobel Prize in Physiology or Medicine in 1969, shared with Luria and Delbrück for their discovery on the replication of viruses and their genetic structure. 1962 (MCMLXII) was a common year starting on Monday (the link is to a full 1962 calendar). ... List of Nobel Prize laureates in Physiology or Medicine from 1901 to the present day. ... 1969 (MCMLXIX) was a common year starting on Wednesday (the link is to a full 1969 calendar). ...


Further reading

A.D. Heshey and M. Chase, 1952. Independent functions of viral protein and nucleic acid in growth of bacteriophage. Journal of General Physiology 36: 39-56.


External link

  • Nobel biography

  Results from FactBites:
 
CSHL - History: Alfred Hershey (418 words)
Al Hershey was working on a little-studied organism called bacteriophage with phage researcher J.J. Bronfenbrenner at Washington University in St. Louis when he received a letter from the brash and brilliant German scientist at Vanderbilt University, Max Delbruck.
Hershey went, and thus formed the third point in the nucleus of the nascent American phage group.
Hershey allowed this to occur, but then at the crucial moment he whirred them in a Waring Blendor, which he had discovered produced just the right shearing force to tear the phage particles from the bacterial walls but not rupturing the bacteria.
Alfred Hershey - MSN Encarta (447 words)
Alfred Hershey (1908-1997), American geneticist and winner of the 1969 Nobel Prize in physiology or medicine, which he shared with Italian-born American microbiologist Salvador Edward Luria and German-born American biologist Max Ludwig Henning Delbrück for their discoveries concerning the replication mechanism of viruses and their genetic structure.
Six years later, in 1952, Hershey and American geneticist Martha Chase conducted their famous “blender experiment” in which, using a Waring blender, they separated the protein coating of the bacteriophage from its nucleic acid core.
Hershey's work contributed directly to this discovery, and also to the development of vaccines against polio, measles, and mumps.
  More results at FactBites »


 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m