Essay on DNA and Chromosomes

Submitted By Morgan323
Words: 316
Pages: 2

DNA, otherwise known as deoxyribonucleic acid, is define as “any of various nucleic acids that are usually the molecular basis of heredity, constructed in a double helix held together by hydrogen bonds” (DNAAbout Our Definitions 1). DNA is what makes a plant or a human different. It is what makes it original and what makes it taste, smell, look, and feel different. Without DNA, you are missing much needed information to complete what you are trying to make.
In 1869, a physician named Friedrich Miescher isolated DNA (“Who Discovered DNA?” 1). After many years of testing, Erwin Chargaff discovered that DNA was the one that carried genetic information and not amino acids which were assumed to have done so before. Many people after Erwin decided to begin testing and have discovered many things. Rosalind Franklin discovered the shape of DNA through X-ray diffraction (Rosalind Franklin 1), and James Watson and Francis Crick worked together to solve the DNA structure but had no success (Nobel Lectures 1).After a few years, Watson and Crick had actually been able to discover the actual structure.
The information that has been found throughout the history of DNA include information in it guiding the cell, tRNA and rRNA through the process of making new proteins, and it is also made up of nucleotides (How DNA Works 1). The complete structure and bases of DNA has also been discovered which include Adenine (A), Cytosine (C), Guanine (G), and Thymine (T) (1). These are the four