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Daily Digest Archive for January 2, 2003

Q: (Initially posted on December 19, 2002) FROM MENTEE KELLY B. IN PA
Which scientist do you think played the most important role in learning
about DNA?

January 2, 2003
A: FROM MENTOR MARTY CHINTALA IN RI
Kelly, I'm glad you asked the question. As far as I'm concerned, the
most important role was the person who got the least credit for it-- her
name is Rosalind Franklin. She worked at Cambridge University and was
the first one to actually recognize the double helix shape of DNA via
high resolution photographs of single strands of DNA. Much of the work
of Watson and Crick was based on her discovery. She has never really
gotten the recognition that she deserves for the work (she wasn't well
treated at the time). Unfortunately she died in 1957 at the young age
of 37 from cancer. She didn't receive any recognition for the Nobel
prize because the award is not given posthumously (after someone dies),
and she died before the award was given to Watson, Crick and Wilkins.
When those men received their award, they gave no credit to Franklin for
her efforts. An excellent book about her that you can get from the
library is: "Rosalind Franklin and DNA" by Anne Sayre, 1978, W. W.
Norton. For more information on other women who played important roles
in scientific discoveries, check out the following website:
http://www.astr.ua.edu/4000ws/4000WS.html (it's a good one!).
********************
A: FROM MENTOR MOLLY WILLIAMS IN MI
The most widely recognized people were Watson and Crick who received
a Nobel Prize for their understanding of the double helix
configuration of DNA. However, any major scientific discovery
happens only because of the background laid by predecessors. It was
Isaac Newton who said, "If I have seen further ... it is by standing
on the shoulders of giants." In the case of the DNA work, one
person, Rosalind Franklin, also appears to have played a significant
role. She did the x-ray diffraction work that allowed the structure
of DNA to be deduced. Unfortunately, she died of ovarian cancer
before the discovery was widely publicized. Not long after Watson
and Crick were recognized for their work, there were accusations
that they had appropriated Franklin's work and not adequately
acknowledged her contribution. Remember that this was in an era
(1950's) when women were not recognized as credible scientists. Now
there is a new book just released, Rosalind Franklin: The Dark Lady
of DNA, by Brenda Maddox, published by Harper Collins. This may
shed a bit more light on the history of this important discovery
that forms the basis for much modern molecular biology.
********************
A: FROM MENTOR SUZANNE FRANKS IN KS
Kelly, for me it is hard to say that just one scientist played the most
important role, because there were many many people who worked on
this issue. Like nearly all of science, any individual discovery depends
upon the work of many, many others. However, one scientist whose
role has been ignored for many years is Rosalind Franklin. There is a
book called "Rosalind Franklin and DNA" by Anne Sayre, that tells the
story of Rosalind's work. It shows how James Watson twisted and bent
the truth in his book about DNA, "The Double Helix." There is also a newer
biography of Rosalind Franklin out. I have not read it, but from some of
the
reviews I have read of it, I do not think too highly of it.
You might also be interested in reading about Barbara McClintock, a real
pioneer in genetic studies and in understanding how DNA works.
"A Feeling for the Organism" by Evelyn Fox Keller is a good biography
of McClintock.

END