DNA Code

Only a small fraction of our total DNA makes us different from gorillas, chimpanzees and other primates. An even smaller fraction makes one person different from the next. It’s these differences that forensic DNA experts use to identify people and determine the source of biological evidence such as blood or semen found at a crime … Read more

Genetic Engineering Essay

As we begin the twenty first century, many new technological advancements make themselves readily available to us. One such technological advancement is genetic engineering. Genetic engineering is the altering of human genes in order to perfect these genes, or change them completely. This new technology is very controversial, because it deals with things such as … Read more

DNA – Deoxyribonucleic Acid

DNA – Deoxyribonucleic Acid – the material that codes for amino acids which form proteins, which in turn carry out functions of the cell. DNA is responsible for building life. Our physical characteristics, susceptibility to some diseases and disorders (e. g. breast cancer, sickle cell anemia), and a few behavior characteristics are passed from generation … Read more

Dna history

The history of DNA structure discovery(sec. 4. 1): 1869- Johan miescher ???studies the nuclei of white blood cells(isolated th material using HCL and digestive proteins ???Named the substance nulclein and also found the material was rich in nitrogen and phosphorus. 919-Pheobus levene ???Discovered that DNA was made of chains of nucleotides *see nucleotide structure* 1920 … Read more