The Secret of Life — Discovery of DNA Structure
The Secret of Life — Discovery of DNA Structure
Last Updated on Sunday, 11 July 2010 09:06 Written by Administrator Sunday, 11 July 2010 09:06
Fifty years ago, James Watson and Francis Crick announced to patrons in a Cambridge pub that they had just discovered the secret of life. Their discovery was that the DNA double helix explained how cells divide and develop. Yet it was not enlightened genius alone that propelled Watson and Crick toward this fundamental revelation. In addition they were building on the work of other scientists and a fortuitous (and un-acknowledged at the time) collaboration with Rosalind Franklin, a British X-Ray crystallographer, was of crucial help in this great achievement.All 50 Secrets of the Sequence videos have an accompanying classroom-tested lesson that encourages students to further explore the video topics. Each lesson includes background information, state and national science standards, discussion questions and answers, teacher notes and an activity that will ensure a hands-on, “minds-on” experience. To see lessons for this series, visit www.pubinfo.vcu.edu
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its not too late jim
set the record straight make an apology about rosalind
its life jim but not as we know it
anyone else agree?
they were both under the influence of LSD when they first thought of the double helix!!!!!
UR SAVING MY FINAL EXAM
life comes from life ……….what has science told me from something that is undeniable
7:27
that lucky severson guy annoys me
True, and one scientist, either Watson or Crick, wrote a book titled, The Double Helix. In this he often made derogatory statements regarding Rosalind Franklin. Rosalind had died of cancer years before due to exposure to x-rays therefore she was unable to defend her honor.
In the description it says Watson and Crick collaborating with Rosalind Franklin but in actuality they werent. Franklin’s xray crystallography was actually used without Franklin knowing about it. Also they didnt give her any credit which in today’s world known as plagiarism
The x-ray crystallography wasn’t how they descovered dna was involved in inheritance. It was all about the transfer of sulphide from one nucleus to another that prove it was DNA. Sulphur makes up the di-sulphide bridges in de-oxy ribonucleic acid.
james or francis crick ?
thanks 4 posting this it really helps with my science report =)
I know right.
Well I haven’t gotten to 5:56 yet. But Rosalind Franklin’s crystollographic x-ray images that proved for Watson that there was a helical structure were not believed to prove that same thing to Franklin herself. In fact, Watson once got close to a serious physical encounter with Franklin because she was bothered by his unwelcomed insistence that the molecule was in fact helical. To be fair, she had earlier believed in a helical structure, but at this point was insisting against it.
james watson discoverd the double helix when he was on acid
“The 20th century mos profound discovery” was LSD by Albert Hofmann.
Something like 75% of American commercial corn has had some genetic manipulation done to it. Some corn is actually labeled as a pesticide thanks to gene manipulation. That’s great! (sarcasm). Kill bugs and eat the kernels…..hmm delicious!
I heard the lab where they were workin on this project was very crowded!! meaning many people working on this project!!
at 5:56 The speaker is grossly mistaken by saying that Watson was the first to know that the x-ray image 51, was a double helix, R. Franklin who took the image would have known immediately. SHE discovered that DNA was in a double helix.
Ha Lucky Severson! What a name!
learn
Thanks for this, it definitely help with my anthro homework!
please, traduction to spanish, I’am not understand!!
thank you!