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science > biology / genetics > timeline > 20th century > Discovery of DNA double helix    1953

 

 

 

 

The DNA Double Helix Discovery — HHMI BioInteractive Video        26 August 2014

 

The discovery of the structure of the DNA double helix

was one of the most important of the 20th century.

 

In this educational video,

explore Watson and Crick’s quest to understand DNA’s structure,

and Rosalind Franklin’s key insights via x-ray crystallography.

 

Rarely seen archival footage

is combined with interviews with some of today’s leading scientists

to bring this Nobel Prize–winning discovery and all of its scientific implications to life.

 

YouTube > biointeractive
https://www.youtube.com/watch?v=1vm3od_UmFg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Genes vs. DNA vs. Chromosomes        Instant Egghead

 

 

 

 

Genes vs. DNA vs. Chromosomes - Instant Egghead

YouTube > SciAmerican
http://www.youtube.com/watch?v=C8OL1MTbGpU

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

Issues of genetics and DNA are constantly cropping up in the news

from food production and health, to legal cases and ethics.

 

We hear about DNA in movies like Jurassic Park and X-men,

we learn bits and pieces about it from TV shows like Dexter and and CSI,

but what exactly is DNA, and how does it work?

 

YouTube > Stated Clearly        Aug 30, 2012
https://www.youtube.com/watch?v=zwibgNGe4aY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

editing DNA

 

http://www.npr.org/2016/02/01/
465180953/british-scientists-gain-approval-to-edit-dna-in-human-embryos

 

http://www.npr.org/sections/health-shots/2015/12/28/
460705645/gene-editing-tool-hailed-as-a-breakthrough-and-it-really-is-one

http://www.npr.org/sections/health-shots/2015/12/03/
458212497/scientists-debate-how-far-to-go-in-editing-human-genes

http://www.npr.org/2015/12/01/
457974663/international-summit-to-debate-editing-human-dna

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DNA testing

 

http://www.npr.org/sections/13.7/2016/02/12/
466379200/can-you-tell-your-ethnic-identity-from-your-dna

http://www.npr.org/sections/13.7/2016/01/29/
464805509/dna-genealogy-and-the-search-for-who-we-are

http://www.npr.org/2016/01/06/
462114359/dna-testing-provides-short-cut-to-trace-family-history

 

http://www.npr.org/2015/10/09/
447202433/-great-pause-among-forensic-scientists-as-dna-proves-fallible

 

http://www.npr.org/2014/02/04/
271120630/exonerations-on-the-rise-and-not-just-because-of-dna

 

http://www.npr.org/2013/06/03/
188397999/supreme-court-rules-arrest-dna-collection-reasonable

 

http://www.npr.org/2010/11/18/
131423969/justice-to-stop-forcing-dna-waivers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Discovery of DNA double helix    1953

 

http://www.nobelprize.org/educational/medicine/
dna_double_helix/readmore.html

http://www.pbs.org/wgbh/aso/databank/entries/
do53dn.html

http://www.guardian.co.uk/science/2013/apr/25/
dna-double-helix-60-years-biological-revolution

http://www.guardian.co.uk/science/2000/jun/27/
genetics.uknews

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Medicine > DNA

 

The Discovery of the Molecular Structure of DNA - The Double Helix

by  James Watson and Francis Crick

 

the DNA-helix,

the molecule that carries genetic information

from one generation to the other.        1953

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Francis H. C. Crick

 

co-discoverer of the structure of DNA

http://topics.nytimes.com/top/reference/timestopics/people/c/francis_h_c_crick/index.html

 

http://www.nytimes.com/2010/09/30/
science/30crick.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

James D. Watson

 

co-discoverer of the structure of DNA

http://topics.nytimes.com/top/reference/timestopics/people/w/james_d_watson/index.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Alexander Rich        USA        1924-2015

 

James Watson and Francis Crick

worked out the spiral structure of DNA in 1953,

but they were not proved right until Dr. Alexander Rich used X-rays

to produce a distinct image of the famous double helix in 1973.

 

(...)

 

For nearly six decades,

Dr. Rich, who died at 90 on April 27 in Boston,

doggedly investigated DNA and RNA,

the fundamental molecules of life.

 

He helped puzzle out the structure of collagen,

a protein that is abundant in ligaments and skin,

and he discovered that DNA can exist in an odd zigzag form,

which he called Z-DNA.

 

His work provided insights into how cells manufacture proteins,

and laid the groundwork for techniques that scientists use

to identify, manipulate and replace bits of genetic material.

 

Diagnostics for H.I.V. infection

and tests for genes that cause breast cancer

are among the technologies built on his discoveries.

http://www.nytimes.com/2015/05/06/us/alexander-rich-dies-at-90-confirmed-dnas-double-helix.html

 

 

http://www.nytimes.com/2015/05/06/us/
alexander-rich-dies-at-90-confirmed-dnas-double-helix.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Horace Freeland Judso        USA       1931-2011

 

science writer whose 1979 book “The Eighth Day of Creation”

is regarded as the definitive account of the breakthroughs

that transformed molecular biology in the mid-20th century

 

(...)

 

Ten years in the making

and based on interviews with more than a hundred scientists,

“The Eighth Day of Creation: Makers of the Revolution in Biology”

revisited the critical discoveries in molecular biology,

notably the double-helix structure of DNA, its mode of replication

and the role of RNA and proteins in carrying out its commands.

http://www.nytimes.com/2011/05/11/
science/11judson.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

William Nunn Lipscomb Jr.        USA        1919-2011

 

Harvard chemistry professor

who won a Nobel Prize in 1976

for his research on the structure of molecules

and on chemical bonding

http://www.nytimes.com/2011/04/16/us/
16lipscomb.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maurice Hugh Frederick Wilkins        NZ / UK        1916-2004

 

unsung hero of DNA research

https://www.theguardian.com/science/2004/oct/06/
obituaries.sciencenews

 

 

https://www.theguardian.com/science/2004/oct/06/
obituaries.sciencenews

 

 

 

 

 

 

 

 

 

Related > Anglonautes > Vocapedia

 

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health > cell > cancer > breast cancer

 

health > cell > cancer incidence worldwide in 2008 > map

 

cloning

 

 

 

justice > courtroom artists / miscarriage of justice > UK / USA