This website uses cookies to ensure you have the best experience. Learn more

Solving The Structure Of Dna Essay

945 words - 4 pages

The Double Helix by James Watson is his personal reflection on discovering the structure of the DNA molecule. With contributions of other scientists, James Watson and Francis Crick were able to solve the structure of DNA. Through contributions and integral relationships of Watson and Crick to Maurice Wilkins, Rosalind Franklin, Linus Pauling, and other smaller contributors the DNA structure was finally solved.
The first and primary contribution to solving the DNA structure was the relationship of Crick and Watson. Without their teamwork and determination, another scientist would have discovered the structure before them. One of Crick’s bigger contributions was discovering the gene is self-replicating. After talking with John Griffith, Crick came up with the idea that the gene is self-replicating, meaning the gene has the ability “to be exactly copied when the chromosome number doubles during cell division”(126). With further discussion with Griffith, Francis believed that DNA replication involved specific attractive forces between the flat surfaces of the bases (128). One of Watson’s major contributions was after seeing the B form of DNA by Franklin, Watson knew that the structure of DNA was two-chained and that led to the building of the model of DNA (171). Also through research, Watson became aware that adenine and thymine pair together and are held by two hydrogen bonds that were identical in shape to the guanine and cytosine pair held together by at least two hydrogen bonds (194). This discovery showed that the two chains of DNA are complementary to each other. With these individual contributions coming together, Watson and Crick successfully were able to piece together the structure of DNA.
Linus Pauling was another individual that aided in solving the structure of DNA. Throughout the book, Watson and Crick were always against Pauling. There was a rivalry between these two groups. Pauling was known for solving the structure of proteins and coming up with the α- helix (35-36). Pauling was the first one to come up with a structure of DNA(156). Pauling came up with “a three-chain helix with sugar-phosphate backbone in the center” (159). Watson was able to deduce that Pauling’s structure would fall apart completely because it lacked hydrogen atoms. With the realization that Pauling was incorrect with his model of DNA, it allowed for Watson and Crick to identify the correct structure in hopes that they would beat him to the discovery.
Maurice Wilkins was another contributor to the discovery of the structure of DNA. Unlike Pauling, Watson and Crick had a friendly relationship with Wilkins. Throughout the book, Wilkins was rooting for the two to beat Pauling to the discovery. With Wilkins willingness in showing Watson and Crick the crystalline photographs, which with x-ray evidence led to the deduction of the 3-dimensional helical structure of DNA....

Find Another Essay On Solving the Structure of DNA

"Life Story", which is an essay about the race to find the structure and function of the DNA macromolecule

2428 words - 10 pages The hunt for where life comes from and what life consists of involved many different personalities, places, and events that came together to reveal an answer that had particularly become of interest in the years preceding the discovery, as much of the world tried to move away from death and closer to life. In 1953, James Watson and Francis Crick presented the structure and function of the nucleic acid DNA, the macromolecule found in living

The role James Watson, Francis Crick, Maurice Wilkins and Rosalind Franklin had in finding the structure of DNA

1688 words - 7 pages In 1962 James Watson (1928-today), Francis Crick (1916-2004), and Maurice Wilkins (1916-2004) jointly received the Nobel Prize in medicine or physiology for their determination in 1953 of the structure of deoxyribonucleic acid (DNA). Because the Nobel Prize can be awarded only to the living, Wilkins's colleague Rosalind Franklin (1920-1958), who died of cancer at the age of 37, could not be honored.The background for the work of the four

The Applications of DNA Typing

2122 words - 9 pages observed DNA during the late 1800s, but it did not become a big deal until 1953 when James Watson and Francis Crick discovered the double-helix structure. ("Deoxyribonucleic Acid (DNA) Fact Sheet") A persons DNA is created from the DNA of their mother and their father, and makes up who they are as a person. All parts of the body contain the same DNA excluding red blood cells. ("STR DNA Analysis") DNA is made up of adenine, guanine, cytosine

DNA - The Thread of Life

693 words - 3 pages eye can involve the interaction of several genes. Some complex genes, such as cystic fibrosis, can go wrong in any number of places. Scientists have already accounted for 350 places where the cystic fibrosis gene mutates, and more are being uncovered weekly.Many environmental factors, some physical, other's chemical, can alter the structure of a DNA molecule. A mutation occurs when such alterations lead to a permanent change in the base sequence

DNA Microarray Technology. Basics of the DNA chips. Applications of DNA chips

1508 words - 6 pages DNA MICROARRAY TECHNOLOGYOne of the most exciting nucleic acid analysis techniques is microarrays or DNA chips. They provide a radically different approach to large-scale analysis and qualification of genes and gene expression patterns. A microarray consist of an ordered arrangement of hundreds or thousands of DNA sequences such as oligonucleotides or cDNAs deposited onto a solid surface approximately 1,2 x 1,2 cm. The microarray technique is

DNA: Unlocking the Secrets of Life

891 words - 4 pages April 25, 1953 was a momentous day for science. James Watson and Francis Crick had finally uncovered the structure of DNA, the molecule behind all forms of life on Earth, and their results were published in the journal 'Nature'. This discovery was probably the single most important discovery of the 20th century.Almost everyone has heard of DNA, but still very few people can tell you what DNA really is. DNA is an abbreviation for the term

The Fallibility of Partial DNA in Courts

1983 words - 8 pages evidence is a useful weapon in solving crimes, it is not infallible; therefore, it needs to be used with caution, especially with partial DNA profile, which is simply just a segment or portion of the DNA strand. Partial DNA profiles should not be upheld in court due to the high amount of mistakes made at laboratories resulting in innocent people being charged for a crime he or she did not commit. Human error and misinterpretation can lead to

The Collection and Retention of DNA

2170 words - 9 pages that the United States should “curb its collection and retention of DNA samples” based on the mere fact that we ascribe to a presumption of innocence within the structure of our laws. (Candidate, 2011) Case of S. and Marper v UK (2008) Facts In the case of Marper v the United Kingdom in 2001, Mr. S. was arrested at the age of eleven. He was charged with attempted robbery. The police department took DNA samples of Mr. S. He was later acquitted

The Use of DNA in Forensics

1257 words - 5 pages The Use of DNA in Forensics DNA (noun) [deoxyribonucleic acid] first appeared 1944 : any of various nucleic acids that are usually the molecular basis of heredity, are localized especially in cell nuclei, and are constructed of a double helix held together by hydrogen bonds between purine and pyrimidine bases which project inward from two chains containing alternate links of deoxyribose and phosphate. What is forensics? fo*ren*sic [1

The pros and cons of DNA profiling

875 words - 4 pages Does DNA profiling in its current state offer foolproof identification? What needs to be in place for it to be error-free? Should all incarcerated criminals be forced to give samples? Should convicted juveniles? Should the general public be required to give a DNA sample? The pros of DNA profiling are that it can be used to quickly eliminate a suspect, saving time in searches for perpetrators. And it can provide compelling evidence to support a

The Debated Applications of Recombinant DNA Technology

769 words - 4 pages more useful than in their natural state,” thus benefiting society by meeting human needs or demands to improve our quality life. Although the use of living systems to make a product has an established history, the modern definition of biotechnology is usually associated with recombinant DNA technology. The idea of recombinant DNA was first proposed by Peter Lobban but the founding principles were published in 1973 by Stanly Cohen and Hebert Boyer

Similar Essays

Discovery Of The Structure Of Dna

2524 words - 10 pages Discovery of the Structure of DNA On the last day of February in 1953, according to James Watson, Francis Crick announced to the patrons of the Eagle Pub in Cambridge, “We have discovered the secret of life” (Watson 115, 1980). As Brian Hayes, the author of “The Invention of the Genetic Code” states, “If life ever had a secret, the double helix of DNA was surely it” (1). However, it was not the work of these two men alone that led to the

Chemistry And The Structure Of Dna

690 words - 3 pages Genetics relies on chemistry to explain phenomena related to the field. The structure of DNA relies on chemistry. In fact, when James Watson and Francis Crick discovered the structure of DNA, they did so by building models based on the laws of chemistry. Chemistry also relates heavily to the structure and function of one of the main products of DNA: protein. Chemistry dictates the structure of DNA. DNA is a polymer of monomers called nucleic

Structure Of Dna Essay

903 words - 4 pages Every living thing is made up of cells. Every cell has a nucleus, and in every nucleus has chromosomes. Human beings have 46 chromosomes or 23 chromosome pairs and each chromosome contains hundreds of genes. These genes contain the recipes, for proteins that make up most of the body. Structural proteins form things such as skin, hair, and muscle. These chromosomes are very long compact coils of DNA (DeoxyriboNuclic Acid) that store all the

The Dna Of Relationships Essay

849 words - 4 pages The book, The DNA of Relationships, by Dr. Gary Smalley was a great, interesting book to read. Moreover than to improve my marriage relationship, I learned of what the actions to endanger all my relationships and taking the responsibility to have safe, full of heart steps to face the dangers. Overall, The DNA of Relationships was a powerful book to read to learn face the dangers of all the relationships and taking the steps to make sure that