Skip to main content

Rosalind Franklin, DNA Scientist, Celebrated by Google Doodle

British biophysicist and x-ray crystallographer helped discover DNA's structure but controversially missed out on Nobel prize.

The latest Google doodle celebrates the life and work of British biophysicist and x-ray crystallographer Rosalind Franklin, whose research led to the discovery of the structure of DNA.

Franklin was born in Notting Hill, London on 25 July 1920.

The second "o" in the doodle contains her image, while the "l" has been replaced with the DNA double helix.

Franklin also made critical contributions to our understanding of the molecular structures of RNA, viruses, coal and graphite.

She died from ovarian cancer in April 1958, aged just 37.

The scientist has perhaps become best known as "the woman who was not awarded the Nobel prize for the co-discovery of the structure of DNA".

During her DNA research, Franklin worked at King's College London under Maurice Wilkins.

The story goes that he took some of her x-ray crystallography images without her knowledge and showed them to his friends, Francis Crick and James Watson, who were also trying to discover the structure of DNA.

Wilkins, Crick and Watson were awarded the Nobel prize in Chemistry in 1962.

Crick later acknowledged that Franklin's images were "the data we actually used" to formulate their 1953 hypothesis regarding the structure of DNA.


Taken from www.guardian.co.uk

Read it >>>
http://arif-nma.com/2013/01/11/model-molekular-dna-watson-dan-crick/
http://arif-nma.com/2013/04/22/sebuah-renungan-dibalik-replikasi-dna/
http://arif-nma.com/2013/02/27/genetika-dalam-mitologi-wayang/

Comments

Popular posts from this blog

Percobaan Ingenhousz - Fotosintesis

Tujuan :   Untuk membuktikan adanya gas oksigen sebagai hasil proses fotosintesis.   Untuk mengetahui pengaruh suhu, intensitas cahaya, dan NaHCO 3 terhadap kecepatan proses fotosintesis.

10 Facts About Diabetes

What is diabetes?   Diabetes is a defect in the body’s ability to convert glucose (sugar) to energy. Glucose is the main source of fuel for our body. When food is digested it is changed into fats, protein, or carbohydrates. Foods that affect blood sugars are called carbohydrates. Carbohydrates, when digested, change to glucose. Examples of some carbohydrates are: bread, rice, pasta, potatoes, corn, fruit, and milk products. Individuals with diabetes should eat carbohydrates but must do so in moderation.

Chlorella, Makanan Berkhasiat

C hlorella merupakan alga hijau bersel satu yang dibudidayakan di kolam air tawar. Chlorella memiliki bau seperti rumput karena kandungan klorofilnya yang tinggi (paling tinggi dari seluruh tanaman yang ada di dunia). Chlorella sudah ada selama miliaran tahun. Hal itu didasarkan pada temuan fosil Chlorella yang berusia 3 miliar tahun sehingga C hlorella termasuksalah satu sumber makanan yang pertama kali ditemukan di dunia. Nama Chlorella berasal dari dua kata latin yang berarti “daun (hijau)” dan “kecil” . Hal tersebut juga berhubungan dengan kandungan klorofilnya yang sangat tinggi sehingga membuat Chlorella memiliki karakteristik warna hijau yang seperti jamrud. Chlorella termasuk alga yang memiliki kandungan protein tinggi. Satu sendok teh chlorella mengandung 5 gr protein. Selain itu, chlorella juga mengandung karotenoid, magnesium yang tinggi dan klorofil yang berfungsi dalam detoksifikasi. Chlorella sebagai faktor nutrien yang kaya pertama kali diiso...