The Molecular Carrier Of Genetic Information

Throughout the early 19th and 20th century, many scientists have studied deoxyribonucleic acids in order to attain higher understanding over the matter. Johann G. Mendel had figured out and understood the laws of heredity. Friedrich Miescher amazingly discovered DNA in 1869, even though scientists did not understand DNA was the genetic material

The discovery of deoxyribonucleic acid, more commonly known as DNA, has been the foundation for much scientific work. This fundamental discovery was credited to James Watson and Francis Crick. Many people believe that another person, Rosalind Franklin, also played a large role in the research. How much did she contribute to the discovery? Why is her name left unrecognized? This paper will discuss her part in the search and whether her name should appear next to Watson's and Crick's as the co-discoverer of DNA.

Over the course of the modern age, the human body was still a mystery waiting to be solved. The body contains secrets one can only hope to discover. Over the twentieth century, scientists tried to understand one of the most complex concepts in the biological field. DNA (Deoxyribonucleic acid) was at the forefront of research. Several theories claimed to have solved the structural concept of DNA. However, it was not until Francis Crick and James D. Watson discovered the true structure, the double helix. However, many potential models of DNA had passed through the biology field until eventual lose of credibility. The past models would contain a fixed detail that would make the entire concept invalid. In James D. Watson book, The Double Helix, he illustrates his path amid incorrect theories until he reaches the model that is taught around the world today.

2. What role did James Watson & Francis Crick play in our understanding of DNA’s structure? They discovered the 3D structure.

Later on through the works of Avery, Macleod, and McCarty in 1944, it became obvious that DNA is the transforming property and the substance

In Time Magazine an article states On February 28 1953, James Watson and Francis Crick broke the DNA code and discovered that the DNA strand is double helix and forms like a ladder. They found that cytosine and guanine were paired together and that adenine and thymine were paired. They discovered the building block of life (Wright, 1999). DNA is found in all living organisms.

There are a variety of correct scientific aspects that describe how DNA works and how to be obtain. We can identify the correct aspects by comparing them with today’s scientific discoveries. One example is the ability to find genetic compatibility in order to procreate a new born. Today this genetic treats can be found through different methods to find the heredity that can be obtained from each parent. Today exists the

DNA is important to organisms because DNA carries hereditary information on to the next generation of cells during the process of replication. This is important for the health of an organism because when a cell divides because it becomes too large; it needs a copy of the genetic information in order to fulfill necessary processes in order to keep the organism alive.

The origins of DNA were first discovered during 1857 by Gregor Mendel the "Father of Genetics”, whom was performing an experiment of genetics with pea plants, and would provide a basic foundation towards DNA and Genetics. Friedrich Miescher and Richard Altmann in 1869 were also part of the first people to discover DNA. While testing some sperm of a salmon, they discover a strange substance that they would name as "nuclein", which is known as DNA. This new form of "nuclein" (DNA) would be found to only exist in chromosomes. Frederick Griffith, a researcher, found the basis on DNA, from a molecule inheritance experiment involving mice and two types of pneumonia. His findings were that, when virulent disease is heated up (to kill) and is

It is constantly recurring throughout his autobiographical statements as he recounts how each small discovery by the scientists he encounters help find a simple explanation, model for the structure of DNA from the complex ideas and evidence they began with. It is seen that each scientist had something to contribute whether it was a discovery or knowledge in their area of expertise that was beneficial in the discovery of the DNA structure. For example, when Crick saw Crystallographer V.Vand’s discovery of “a theory for the diffraction of x-rays by helical molecules” though he thought the theory was invalid it peaked his curiosity in finding an accurate theory. Furthermore, in Watson’s interview it is seen that when it comes to science he thinks that if there is scientific knowledge that will affect human beings’, scientists, the scientific community should work to ensure that they understand the knowledge and

Although DNA was initially observed by Frederich Miescher, a German biochemist near the end of the nineteenth century, the key to the structure of DNA was not discovered until almost a hundred years later. It was at that time that science realized the importance of DNA to the study of biology.

This theory resulted in examination incited a clarification in the strategy behind the replication of a quality and, unquestionably, the chromosome. Watson and Crick circled a paper depicting their DNA twofold helical structure in the trial diary Nature in April of 1953. Another social event at King's College had been trying to open the structure of DNA also, and the work earned Crick, Watson and Maurice Wilkins, one of the King's College authorities, the 1962 Nobel Prize for Physiology or

Avery, Macleod, and McCarthy took the findings of Griffith and wanted to reason why the combination of the two cells killed the mouse. The took the different parts which would cause the DNA, Protein, and RNA and eventually eliminated them one by one. After all of that, only bacteria that was exposed to the S-strain DNA were transformed. This gave the idea that DNA is what was controlling living things and was the outcome of this experiment

1953, Watson and Crick discovered one of the biggest mysteries of the human body; the DNA

Rosalind Franklin’s work on DNA was crucial in discovering the composition of the human body as a whole. Her x-ray photo revealed a double helix structure and she also discovered the A and B form of DNA. She worked through the adversity of being a female in a predominately male dominated realm and made remarkable findings that were eventually stolen. She adapted to a new lab with antiquated technology. Before this discovery, the structure of DNA was thought to be simple. Scientist, Watson and Crick, started with the wrong structure of DNA from a misinterpretation of notes from one of Franklin’s presentations. Unlike Watson and Crick, Rosalind Franklin could explain DNA and how it worked.