Historical Discoveries Of Dna And Genetic Material

Discoveries in DNA, cell biology, evolution, biotechnology have been among the major achievements in biology over the past 200 years with accelerated discoveries and insights over the last 50 years. Consider the progress we have made in these areas of human knowledge. Present at least three of the discoveries you find to be most important and describe their significance to society, health, and the culture of modern life.

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

DNA is the genetic material that makes up the characteristics of all living organisms. While all human DNA is very similar in nature, there is just enough differences in

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.

Each human being has something called DNA. DNA is described as genetics and an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms. DNA constructs of two nucleotide strands coiled around each other in a ladder like arrangement with the sidepieces composed of alternating phosphate and deoxyribose units and the rungs composed of the purine and pyrimidine bases adenine, guanine, cytosine, and thymine. Each chromosome consist of one continuous thread-like molecule of DNA coiled tightly around proteins and contains a portion of the 6,400,000,000 basepairs that make up your DNA.

James Watson is an extremely famous molecular biologist, zoologist and geneticist. He is best known for his co- discovery of DNA with fellow scientists Rosalind Franklin and Francis Crick.

Scientist in early 1950s James Watson a biologist from Indiana University and Francis Crick a physicist were working at lab to discover the structure of DNA. The primary technique for structural analysis of biological molecules is X-rays. The wave length of X-ray is about the same as the space between the atoms in crystal matters. We learn and know that genetic information was carried on chromosomes made up of DNA and protein. Maurice decided and taken the first x-ray picture of DNA that lead him to suggest the DNA structure might be a helix. Watson was able to rely on Wilkins' research. If he had not, he may have not been the one to discover the structure of DNA. The biggest thing I learned from my research is that scientists can’t make discoveries

Since the invasion of the western culture on the rest of the world, a new standard of science has emerged. This new breed of scientist digs for answers wherever he/she thinks that they may be found, with no compassion for the environment around them or the outcome of those actions. The modern day scientist seems to have a problem with accepting nature for the way it is and instead, is trying to constantly rearrange it for the proclaimed reason of, the good of man. DNA research began over twenty years ago because, mankind has always had a lust for how we work and operate. DNA, it was found, seemed to be the blueprint for how the human genetic structure worked and operated. This was where science obviously needed to be headed as it was after all, the possible key to all of mankind’s questions of itself. Some years after, the massive project began known as the Human Genome Project. The project began with the promise of, in the end, being able to figure out the cause of almost every human malfunction and the cure for it (Thomas, p 51).

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.

DNA, Deoxyribonucleic Acid, is the basic structure for all life, it is the blueprint, the instruction manual, on how to build a living organism. DNA is made up of four nitrogen bases, adenine, thymine, cytosine, and guanine which are connected by sugar-phosphate bonds. Through a process called Protein Synthesis, the nitrogen bases are the code for the creation of amino acids. Essentially, DNA makes amino acids, amino acids make proteins, proteins make organisms. This process has been taking place for much longer than scientists have been able to document. Those scientists are called geneticists and their field is genetics.

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

What is DNA? Is it these winding strands that look like ladders or is it what gives a person blonde hair and blue eyes? Actually, DNA is both of these things. DNA is a person’s genetic makeup–their hereditary blueprint passed on by their parents. It is a part of almost every cell in the human body. In each cell, a person’s DNA is the same; it stays the same throughout their lifetime. DNA is found in skin tissue, sweat, bone, the root and shaft of hair, earwax, mucus, urine, semen, and vaginal or rectal cells. The DNA found in a person’s saliva is the same as the DNA found in their blood. Parts of the DNA determine our physical characteristics, such as eye and hair color, height, and bone structure, but the

In 1953 four scientists: James Watson, Francis Crick, Maurice Wilkins and Rosalind Franklin completed a DNA model which they created using observed X-ray diffraction patterns. This model showed how the structure of DNA was able to transmit genetic information from parents to their offspring.

DNA or to be exact deoxyribonucleic acid is the fundamental of every living organisms genetics. It is a code that not more than one person shares. DNA is unique to every human and not one human have the same DNA code. This scientific discovery was a tremendous leap of success in the criminal justice system. In the early 1900's the United States Criminal justice system was not as precise as it is now. Many were convicted wrongly and it was very hard to pin point who committed a crime because there was no valid evidence tying a person onto a crime. At this time scientists and chemist where on the verge of a ground breaking discovery. Chemist James Watson and Francis Crick determined the double-helical structure of DNA, DNA itself was identified

Francis Crick was a Biophysic born in Northampton, England(1916). He helped create new technologies during World War II.After the war, he began investigating the structure of DNA with the Research Council of the University of Cambridge Medical at its Cavendish Laboratory with James D. Watson. He received a Nobel Prize for Physiology or Medicine in 1962 which he shared for his work and he continued coordinating investigation until 2004 when he passed away.