• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
DNA Scissors: Introduction to Restriction
DNA Scissors: Introduction to Restriction

... phosphodiester backbone by cutting just between the G and the first A of the restriction site on both strands. Do not cut all the way through the strip. Remember that EcoRI cuts the backbone of each DNA strand separately. 2. Now separate the hydrogen bonds between the cut sites by cutting through th ...
File
File

... • DNA directs the production of proteins, which are made by combining amino acids. • The sequence of amino acids in a protein chain determines the shape and function of the protein. • Each group of three nucleotides in a DNA sequence codes for a particular amino acid. – Example: G-A-G codes for the ...
Rapid sequencing of DNA based on single molecule detection
Rapid sequencing of DNA based on single molecule detection

... pulsed-laser SMD apparatus (0.0007 photoelectrons / photon). estimated flow velocity, the concentration of the fluorophore used in this experiment and the size of the observation volume (1.8 pL) , the calculated number of molecules passing through the laser beam is approximately 1 per sec. If one se ...
Cells in culture.
Cells in culture.

... Miescher first isolates DNA from white blood cells harvested from pus-soaked bandages obtained from a nearby hospital. ...
Chapter 11 Nucleic Acids Nucleotides
Chapter 11 Nucleic Acids Nucleotides

Poster
Poster

Exonuclease active site: a more complete description
Exonuclease active site: a more complete description

... nucleophile (Beese and Steitz, 1991) as well as with K143, whose -amine group ...
DNA and the Genome
DNA and the Genome

... • PCR manipulates the natural process of DNA replication. • PCR is now an automated technique widely used in many areas of research and industry. • PCR requires template DNA, Taq polymerase, dideoxynucleic acids with each of the four DNA bases, Mg2+, primers and a buffer. • PCR involves continuous a ...
CHAP 15
CHAP 15

"Polymerase Chain Reaction (PCR)". In: Encyclopedia of Life Sciences
"Polymerase Chain Reaction (PCR)". In: Encyclopedia of Life Sciences

... Inherited diseases These disorders are caused by gene mutations passed on from parents to their children. Examples include hemophilia and cystic fibrosis. PCR is used to amplify gene sequences, which can then be screened for diseasecausing mutations. The information obtained has dramatically improve ...
lecture_23 - supporting lehigh cse
lecture_23 - supporting lehigh cse

... – Conventional computer can solve tour with 70 cities, but would fail with 100 or more cities • Even with 1023 parallel processors, Brute force is too inefficient ...
Nanotechnology for Genetic Engineering in Agriculture
Nanotechnology for Genetic Engineering in Agriculture

... be centrifuged to shift cytoplasmic contents for better visualization of pronuclei to improve the ability to inject into a pronucleus. Centrifugation does not necessarily clear the view for all zygotes, so only a subset of cells will be suitable for microinjection after centrifugation. ...
Explain what genetic recombination is, why it is important and ho it
Explain what genetic recombination is, why it is important and ho it

... same species, scientists have developed q to combine DNA from anyy 2 techniques individuals.  These techniques result in the production of artificially recombined DNA.. DNA ...
DNA Replication and Recombination - HMartin
DNA Replication and Recombination - HMartin

Report Prepared for ANZFSS National Council
Report Prepared for ANZFSS National Council

... Bond University Research & Consultancy Services (BURCS) for the access to funds via the Higher Degree Research Student Support Scheme. Prof. Greg Gass, Deputy Dean of Health Sciences, Bond University, for the provision of additional funds for staff training. Supervisor Prof. Angela van Daal for her ...
Document
Document

techniques in molecular biology – methods
techniques in molecular biology – methods

... QIAGEN Resin is a macroporous silica-based resin with a high density of diethylaminoethyl (DEAE) groups, which was developed exclusively for isolation of nucleic acids. Purification on QIAGEN Resin is based on the interaction between negatively charged phosphates of the nucleic acid backbone and pos ...
Cloning in Escherichia coli
Cloning in Escherichia coli

... chain reaction with a bacterial plasmid called pGEM-T®. Next, you will introduce the products of this ligation reaction into E. coli cells in a standard technique called a transformation experiment, and select for cells that have taken up plasmid DNA, based on an ampicillin resistant phenotype confe ...
PSI Genes- Homework
PSI Genes- Homework

5 min Insect DNA/RNA Preservation and Extraction Kit
5 min Insect DNA/RNA Preservation and Extraction Kit

LECTURE #20: Bacterial Transformation and Gel
LECTURE #20: Bacterial Transformation and Gel

Datasheet - BioVision
Datasheet - BioVision

... Liquid form for one year ...
D2 - Interchim
D2 - Interchim

... can be extracted and purified from bacteriophages, bacteria, fungi and yeasts, plants, soil, tissues, food/feed, blood and cell cultures. An absolutely new feature of PrestoSpin D is the purification of plasmid DNA in midi format, cosmid and BAC DNA, using mini spin column purification. The PrestoSp ...
QIAquick Gel Extraction Kit Protocol
QIAquick Gel Extraction Kit Protocol

... 9) (Optional): Add 500 µL of Buffer QG to QIAquick column and centrifuge for 1 minute. This step will remove all traces of agarose. It is only required when the DNA will subsequently be used for direct sequencing, in vitro transcription or microinjection. 10) To wash, add 750 µL of Buffer PE to QIAq ...
lec-02-handout
lec-02-handout

... samples were taken, cells lysed and the DNA analyzed by centrifugation in CsCl gradient. The parent DNA showed 1 band in CsCl gradient corresponding to 15N DNA, the 1st generation daughter molecules also showed 1 band which was not at the same position as parent DNA. This corresponded to 14N-15N DNA ...
< 1 ... 12 13 14 15 16 17 18 19 20 ... 105 >

Maurice Wilkins



Maurice Hugh Frederick Wilkins CBE FRS (15 December 1916 – 5 October 2004) was a New Zealand-born English physicist and molecular biologist, and Nobel Laureate whose research contributed to the scientific understanding of phosphorescence, isotope separation, optical microscopy and X-ray diffraction, and to the development of radar. He is best known for his work at King's College, London on the structure of DNA which falls into three distinct phases. The first was in 1948–50 where his initial studies produced the first clear X-ray images of DNA which he presented at a conference in Naples in 1951 attended by James Watson. During the second phase of work (1951–52) he produced clear ""B form"" ""X"" shaped images from squid sperm which he sent to James Watson and Francis Crick causing Watson to write ""Wilkins... has obtained extremely excellent X-ray diffraction photographs""[of DNA]. Throughout this period Wilkins was consistent in his belief that DNA was helical even when Rosalind Franklin expressed strong views to the contrary.In 1953 Franklin instructed Raymond Gosling to give Wilkins, without condition, a high quality image of ""B"" form DNA which she had unexpectedly produced months earlier but had “put it aside” to concentrate on other work. Wilkins, having checked that he was free to personally use the photograph to confirm his earlier results, showed it to Watson without the consent of Rosalind Franklin. This image, along with the knowledge that Linus Pauling had published an incorrect structure of DNA, “mobilised” Watson to restart model building efforts with Crick. Important contributions and data from Wilkins, Franklin (obtained via Max Perutz) and colleagues in Cambridge enabled Watson and Crick to propose a double-helix model for DNA. The third and longest phase of Wilkins' work on DNA took place from 1953 onwards. Here Wilkins led a major project at King's College, London, to test, verify and make significant corrections to the DNA model proposed by Watson and Crick and to study the structure of RNA. Wilkins, Crick and Watson were awarded the 1962 Nobel Prize for Physiology or Medicine, ""for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material.""
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report