HST 423 - Modern Science in World Historv Prof. Zuoyue Wang …zywang/hst423paperdna2.pdf ·...
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HST 423 - Modern Science in World Historv
Prof. Zuoyue Wang
12March2008
Beyond Photograph 51
The discovery of the structure of DNA raises the concern about women in male
dominated fields, such as science and engineering, due to the discrimination that Rosalind
"Rosy" Franklin faced at King's College while working on DNA X-ray crystallography. Not
only was Franklin mistreated at King's College, but she also wasn't given the credit she deserved
for her DNA knowledge and data that led to the discovery of the structure of DNA. The most
imminent data that Franklin produced was Picture 5l,which clearly showed that DNA was
double helical, and was used by Watson and Crick without referencing it. The discrimination
against Rosalind Franklin was brought to public attention when The Double Helix was published
in 1968, by the sexist way author James D. Watson portrayed Franklin. The Double Helix
caused many people underemphasize Franklin's scientific abilities and contribution to the
discovery of the structure of DNA. For example, James Watson wrote that "...she was
incompetent in interpreting X-ray pictures. If only she would learn some theory,"r hence labeling
her work as mere data gathering, and unable to syrthesize scientific theories about DNA.
Rosalind Franklin was not only a skillful crystallographer and data supplier, but beyond
Photograph 5l she was a brilliant scientist, discovering important facts regarding the forms,
components, and configuration of DNA that have helped us better understand this controversial
molecule.
' Watson, James D., The Doublellell.x (New York: Touchstone, 2001), 166.
Rosalind Franklin, the "incompetent" scientist at the eyes of her colleagues, was
successful at making accurate conclusions about DNA's configuration, which Watson and Crick
referenced for their model. Franklin was one the first to suggest that the phosphates go on the
outside, and that the bases go in between the DNA strands. When Watson and Crick constructed
their first DNA model, Franklin corrected the model's mistaken configuration that had the
phosphates in the center of the helix, and the bases on the outside'. In order for DNA's role in
genetics to be understood, the bases had to be in the inside of the molecule, which pair up in an
exclusive way, and allow DNA to pass genetic information from generation to generation
through the copying of the base pattern. Without Rosalind Franklin's insight on the position of
the bases, Watson and Crick's would not have discovered the DNA copying mechanism at the
time. In addition, embarrassing for Watson during his first model review was the fact that his
model was ten times short of required water molecules. Rosalind Franklin presented the DNA
water content at the seminar in 1951 that Watson attended. Watson admits that he couldn't
concentrate on the lecture, and he began wondering "how she would look if she took of her
glasses and did something novel with her hair,"3 during the seminar. Perhaps if Franklin had
been a typical male scientist, Watson would have paid more attention to the lecture, and maybe
even taken notes. Furthermore, Rosalind Franklin, and his assistant Gosling published an MRC
report, which contained Rosalind's estimations of the 34 Angstrom repeat in the B form of
DNA, which was essential for checking the model for the correct pitch of the helix.a The
information in the MRC report was viewed without the consent of Franklin, adding weight to the
immorality of Watson's actions. Even when Franklin contributed this valuable information,
' Rapoport, Sarah, "Rosalind Franklin: Unsung Hero of the DNA Revolution," The History Teacher 39, no. I(November 2002):120.
'Wutrot; James D., The Double Hetix (I\ew York: Touchstone, 2001), 69.o Manwell, Clyde, "Commentary: The Double Helix: Science and Myth in the Art of Creation," BioScience 29, no12 (December 1979): 7 44.
Watson, Crick, and Wilkins did not share the credit for the discovery of DNA's structure with
her. Instead, James Watson described in The Double Helix as an obstacle to the discovery since
"the point had been reached where Rosy would not even tell Maurice her latest results."5 Author
Sarah Rapoport affirms, that if Watson, Crick, and Wilkins had properly acknowledged
Franklin's contribution, she would have shared the enorrnous public recognition that they
received for discovering the structure of the DNA molecule.6
"Look, there's a helix, and that damned woman just won't see it,"7 were the words of
Maurice Wilkins, referencing Photograph 51, which he took without her permission. James
Watson also repeatedly attacked Rosalind Franklin's position against the helical structure of
DNA in The Double Helix, when in fact Franklin did acknowledge the helix as the most probable
structure for DNA. James Watson relates, "...since to her mind [Rosalind Franklin's] there was
not a shred of evidence that DNA was helical."8 James Watson was ignoring Franklin's
unpublished notes from 1951 and 1952 that showed that Franklin was certain about the helical
nature of wet DNA, but since dry DNA presented a different structure in the X-ray diffraction
pictures, she searched for a structure which would explain that patterns produced in both forms.e
Evidently, Rosalind Franklin's motivation for her research on DNA was not rushing to guess the
structure of DNA so that she could win a Nobel Pize, but understanding the scientific reasons
behind the discrepancies of the two forms of DNA. Moreover, going back to Franklin's seminar
in 1951, Anne Sayre, author of Rosalind Franklin and DNA, assures that "Her notes for the talk,
typed, underlined and corrected in her hand, say, 'Conclusion: Big helix in several chains,
5 Watson, James D., The Double llelz-r (New York: Touchstone, 2001), 56.o Rapoport, Sarah, "Rosalind Franklin: Unsung Hero of the DNA Revolution," The History Teacher 39, no. I(November 2002\: ll7.7 Manwell, Clyde, "Commentary: The Double Helix: Science and Myth in the Art of Creation," BioScience 29 , no.
_12 (December 1979): 7 43.o Watson, James D., The Double F1ellx (New York: Touchstone, 2001), 165." Shapley, Deborah, "Rosalind Franklin and DNA," NewYork Times, September 21, 1975,27.
phosphates on the outside, phosphate-phosphate interhelical bonds disrupted by waste links
available to proteins'."10 Later on, in 1953, when Rosalind Franklin review the Watson and
Crick's final model of DNA, Watson commented that "I feared that her sharp, stubborn mind,
caught in her self-made antihelical trap, might dig up irrelevant results that would foster
uncertainty about the correctness of the double helix."ll Clearly, the stubborn mind belonged to
Watson, who once again mistakenly assured that Franklin did not agree with the helix nature of
DNA, perhaps thinking that her female intellect was not capable of seeing such plain fact after
years of studyrng DNA.
Moreover, Rosalind Franklin was more than capable of solving the problem of the
structure of DNA, and its role in genetics, without the underhanded actions by Watson and
Wilkins. In an interview by Anne Sayre, Francis Crick was asked how long would it have taken
for Rosalind Franklin to fully solve the structure of DNA, and he answered, "Perhaps three
weeks [after Watson and Crick's publication]. Three months is likelier."l2 Also, author Brenda
Maddox describes Aaron Klug's (Franklin's colleague at Brikbeck College) conclusion that
"...aft.er reviewing her notebooks and reports, which had been given to him [Klug] after her
death, both he and Francis Crick became convinced that she was poignantly close."l3 Franklin
and Gosling published their X-ray diffraction research results in the same journal that James
Watson and Francis Crick's published their paper on the structure of DNA, but it was too late.
Franklin and Gosling's paper was taken just as confirmation for Watson and Crick's discovery.
ro Shapley, Deborah, "Rosalind Franklin and DNA," NewYork Times, September 21, l9'/5,30." Watson, James D., The Double l1elrx (New York: Touchstone, 2001), 210.12 Manwell, Clyde, "Commentary: The Double Helix: Science and Myth in the Art of Creation," BioScience 29,no. 12 (December 197 9): 7 43.'' Cohen, Carolyn, "Review: Rosalind Franklin: The Dark Lady of DNA by Brenda Maddox," The Ll/omen's Reviewof Books 20,no.2 (November 2002):9.
James Watson's portrayal of Rosy in The Double Helix is partially historically inaccurate,
with of sexist comments about Franklin personality, md work. Rosalind Franklin was
exceptional at both obtaining data, and synthesizing data, due to her unacknowledged discoveries
on DNA. The discovery of DNA's double helix structure could not have been possible at the
time without Franklin's work, and without her courage to withstand the environment she worked
on for all those years at King's College. Moreover, Watson's and Wilkins ideas that Franklin
was against the helical structure of DNA were a product of their ignorance towards her approach
to science. In contrast to Watson and Crick's trial and error approach to the DNA's structure
problem, and their use of science as a medium for recognition, fame and the Nobel pize,
Rosalind Franklin did her work for scientific understanding, and the improvement of humanity.
Bibliography
Cohen, Carolyn. "Review: Rosalind Franklin: The Dark Lady of DNAby Brenda Maddox.,, The
lV'omen's Review of Bootrs 20,no.2 (Novemb er 2002):9.
Manwell, Clyde. "Commentary: The Double Helix: Science and Myth in the Art of Creation.,,
BioScience 29, no.l2 (December 1979): 743_744.
Rapoport, Sarah. "Rosalind Franklin: Unsung Hero of the DNA Revolution .,, The Historv
Teacher 39, no. I (Novemb er 2002): ll7, 120.
Shapley, Deborah. "Rosalind Franklin and DNA." New York Times, Septembe r 21, 1975,27,30.
watson, James D., The Double Helix. New york: Touchstone ,200r, 56,69, 165-166,210.
Peer Group Review WorksheetsProf. Zuoyue Wang
Note: A good history paper should have a clear thesis statement, supported by a rich narrative built on avariety of sources, flow well from sentence to sentence and paragraph to paragraph, be free of grammaticalerrors, and follow consistently the Turabian style for footnotes and bibliography. The purpoJe of thisexercise is to offer critical but constructive fbedback to your classmates so they can improve their papers.
Paper Title: By:
Student Peer Reviewer No. I N vrn". ') r Iwhat 's the paper 's Main Argumenr?
r I l te: l / ) rJ l+" t ' \ ' t f ' l lc i t ( ' i -
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what Are the Major Primary and Secgndary Sources Used in the paper?' \>. , \c\0,1 Tt( b-^ ' rL t t . t tx / - - t r . ' t ( . . ,
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What Do You Like about the Paper?
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What Are Yor-rr Suggestions on Improving It?
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Student Peer Reviewer No. 2 Name: {VtcttWhat's the Paper's Main Argument?
. - r - .'l<os"tln t l kianK,',l Wq5 WiErxft s<trte il \ h<r I<ltout sZrerr hsfs
what Are the Major Primary and Secondary Sources Used in the paper?
9ooK1 q Quof ,eWhat Do You Like about the Paper?
V*q ForLoea1 on one tfi. i { ood Sout ez>
Whal-Are Your Suggestions on Improving lr l
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Response from Author:
How Have You Responded to Your Classmates' Comments ancl Suggestions in Revising your paper?
Have You Found the Peer Review process Helpful?
Nathan Galdamez
HST 423 - Modern Science in World History
Prof. Zuoyue Wang
9 March 2008
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S I Rosalind "Rosy'' Franklinr ryorking on DNA X-ray crystallography, faced at King's College,
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. u t / whereshe,,wasn't allowed into the tea room, the lab she worked on was in the basement, and her
sqientific skills were not valued, Not only was Franklin mistreatqd at King's College, but she
^/ft"rtot|twasn't given the credit she deserved for knowledse and data that led to thet".{qb+6,t 7
discovery of the structure of DNA. The discrimination issue w ught t$ryffr,rfrrwl*f,),to
public attention when The Double Helix was published in 1968, by the sexist;ffauthor JamesvVrto Anct ttra dqtq
'.D. Watsonlportrayed Rosalind Franklin, uaese+a especially Photograph 51, proved DNA's
helical structure.ffiIany people erroneously underemphasize Franklin's scientific abilities and
contribution to the discovery of the structure of DNA by saying, like.James Watson, "...she wasl , i r . i . .c,, : '^ l*. t"t , ' ."
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incompetent in interpreting X-ray pictures. 1If only she would learn some theory,"l hence
labeling her work as mere data gathering, and unable to synthesize scientific theories about
DNA. lind Franklin was not only a skillful crystallographerynd data supplier, but beyond I
Photograph 511 she was a brilliant scientist, discovering important facts regarding the forms,
components, and configuration of DNA that have helped us better understand this controversial
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:)\uwRosalind Franklin, the irfcompdten-{dray crystallogruphEr.E the eyes of her colleagues,
was successful at making accurate conclusions about DNA's configuration, which Watson and, ' r ' ' t ' ' \
Crick referenced for their model. Franklin was orr the first to suggest that the phosphates go on
)' " ' O"\|J\A{the outstdel and the bases go on the inside of the DNA strands. When Watson and Crick\'> o.C Dn\ l'* :l-rc,^^.to - - Iconstructed their first model, Franklin corrected Watson and Crick's model of DNA "...because
of its backbone on the inside,"2 which refers to the mistaken model that had the phosphates
inside the helix, and the bases on the outside. ln order for DNA's role in senetics to be-rLe b ns e gl c'ci<n c.rr'{_ e l/o,^rcJ
understood, the bases had to be in the inside of the molecule. Watson and Crick discoy616{ la1s.\ \ , . \ +- J.r'lcove.1z
onl the bases pair up like steps in a latter in a defined pairing pattern, thus allowing genetic
information to be copied and passed on generation to generation. Without Rosalind Franklin's
insight on the position of the bases, Watson and Crick's discovery on genetics would have not
happened at the time. More embarrassing for Watson during his first model review was the fact, r . ,v ' . t tA
that his model was ten times short of the l6ontent of water molecules. Rosalind Franklin
presented the DNA water content at the seminar in 1951, while Watson auyar"urrlffd.uringjtslnwtd
dur.atio.n,causinghimtog#suchanimportantfeature.InTheDoubleHelix,Watson{bi \ i. rerrrzl4a-lc'svt n,
admits wondering how she would look if "she took of her glasses and did something novel with
her hair,"3 during the seminar. Watson was distracted by the fact that Rosalind was a woman,
and it is possible that if Franklin had been a typical male scientist, Watson would have paid more
attention, and maybe lagrptlrtr'Fe even taken notes. Furthermore, Rosalind Franklin, and his
assistant Gosling's MRC report, contained Rosalind's "estimations of the repeat 34 Angstrom in
the B form of DNA, which was essential for checking the model for the proper pitch of the
helix."a The information in the MRC report was viewed without the consent of Franklin. addins
weight to thei'lnorality of Watson's ac{ions. Even when Franklin contributed this valuabl]\' l
qOf orbcr$.
information, Watson, Crick, and Wilkins did not share the credit for the discovery of DNA's[ ' .
structure with her". in reward for her contribulion, James Watson described tn The Double Helix
as an obstacle to the discovery since "the point had been reached where Rosy would not even tell
Maurice her latest results."s Author Sarah Rapoport affirms, "Had Watson, Crick, and Wilkins
1!4 properly acknowledged Franklin's contribution, Rosalind Franklin would have shared theN
)) .nor-ous public recognition that Watson and Crick received for discovering the helical structure"\\i\
, *\r - of the DNA molecule."6
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t "Look, there's a helix, and that damned woman just won't sss it,"7 were the words of
tJ r/) ;t-S .* Maurice Wilkins, referencing Photograph 51, which he toeklfrom-fier draweB without her\ * #"al<nt^qg,*s 0/(: permission. James Watson also repeatedly attacked Rosalind Franklin's position against the
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* helical structure of DNA in The Double Helix, when in fact Franklin did acknowledge the helixi \
,_,. .- +{ iS ,.\i as the most Eolsib-k structure for DNA. James Watson relates, "...since to-hor mind [Rosalind.P i"S ' Franklin's] there was not a shred of evidence that DNA was helical."8 James Watson was\* ,J-. \
\ ,V ignoring Franklin's unpublished notes from 195 | and 1952 that showed that Franklin was certain\
'.\ X-;q!' (q about the helical nature of wet DNA, but since dry DNA presented a different structure in the X-\--1.*)
ray diffraction pictures, she searched for a structure which would explain that patterns produced-t\
S \ in both forms.e Evi{ently, Rosalind Franklin's motivation for her research on DNA was not.$ 1r uY$|ute
^ t5- 'fi rushing to f;u4ss the structure of DNA so that she could win a Nobel Pnze, but understanding the
tJz. ,\Jx.terfifv
asons behind the discrepancies of the two forms of DNA. Moreover, going back to
Franklin's seminar in 1951, Anne Sayre, author of Rosalind Franklin and DNA, assures that
"Her notes for the talk, typed, underlined and corrected in her hand, say, 'Conclusion: Big helix
in several chains, phosphates on the outside, phosphate-phosphate interhelical bonds disrupted
by waste links available to protein'i.':'rto Even in 1953, when Watson and Crick finished their
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model of the structure of DNA, and had Rosalind Franklin review the model, Watson still
commented that "I feared that her sharp, stubborn mind, caught in her self-made antihelical trap,
might dig up irrelevant results that would foster uncertainty about the correctness 1f
the double
helix."ll Clearly, the stubborn mind belonged to Watson, who once again assuredithat Franklin
did not agree with the helix nature of DNA, perhaps thinking that lher female intellect was notp lcrf n
capable of seeing such eVj4pnt fac$after years of study-trg DNA.
ty)rc fnctflMoreover, Rosalind Franklin wasAcapable of solving the problem of the structure of
DNA,andi tsroleingenet ics,wi thouttne@(1,M:,o^: ! , ' "byWatsonand
Wilkins. In an interview by Arure Sayre, Francis Crick was asked how long would it have taken
for Rosalind Franklin to fully solve the structure of DNA, and he answered, "Perhaps three
weeks [after Watson and Crick's publication]. Three months is likelier."l2 Also, author Brenda
Maddox describes Aaron Klug's (Franklin's colleague at Brikbeck College) conclusion that -.1, -".,' ? f **vv',, Lb4J
"...after reviewing her notebooks and reports, which had been given to1lim after her death, both
heandFrancisCrickbecameconvincedthatshewaspoignantlyclose.,, l3nri lnt1in3"d@,w,
did publish their X-ray diffraction research results, and the results were published in the same
4\rt tjournal Aidgwatson and ffz@Crick's original paper was published4but it was too late.
Mf fro^W^*5 6"< Unj'&efi paper was taken just as confirmation for Watson and Crick's discovery. Rosalind
Franklin's approach was about understanding the data, ruling out other possibilities, and obtain
new insights about DNA, which differs from some the competitive approach that Wa$ofl,and
Crick adopted, which was about spylng on other p"opl'.', progress, finding out what they knew,
and publishing first to obtain all the credit, and ultimately the Nobel Pize. ':-: i. i l"Jariraffq -\' +Pqrlr4 U
James Watson's portrayal of Rosy in The Double Helix is i x#J+isoucarrv c-'foorhhc s *
inaccurate, Wbffiaded g(exist comments about Franklin personality/and*o.k. Rosalind = K
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qodd 6nrle!/vn,tinqFranklin was exceptiorraiut both obtaining data, anC sfi#ffi-Oatu,' {u"to her discoveries on
the DNA h"li** . The discovery of the
structure of DNA could not have been possible at the time without her work, and without her
courage to withstand the environment she worked on for all those years at King's College.
Moreover, Watson's and Wilkins ideas that Franklin was against the helical structure of DNA,
were a product of their ignoraqce towards her approach to science, and their dqficiency to backdfttq, ilo iTa ltcic
up their models with concrete ddh In contrast to Watson and Crick's orql ty_?:::gproach
to the DNA's structure problem, and their use of science as a medium for recognition, fame and
the Nobel Pize,Rosalind Franklin dta ,her ryfficwork fo-r Wffi;standings and theBo qa[vrd 4
?h,ted thrSimprovement of humanityp iia5$ident later
""1ilh€r+#^4ren she worked on the helical
structure of the tobacco mosaic virus, until a few weeks before her death.