DNA (Deoxyribonucleic acid)

DNA (Deoxyribonucleic acid)

Introduction

DNA has been used as a vital element in the identification of the individuals on the basis of the human genes. The accuracy of the identification of an individual is so extremely accurate through the DNA. This paper includes the description of a chronological overview of DNA along with the article review in relation with the topic. It will be discussing the basic principles involved in DNA analysis method and the mechanism involved in the identification of an individual up to 100 to 500 trillion. The discussion also involves the importance of DNA analysis to be applied in different fields.

Discussion

DNA is a deoxyribonucleic acid which is contained by every individual and form the basis of the identification of an individual. Genetic information represented through DNA segments is called genes. DNA is made up of two long polymers called nucleotides which involve a backbone made up of sugar and phosphate. These are anti parallel as they run in opposite directions. First being three prime and the other one being forth prime. The sequence of backbones helps to identify the information. Genetic code is helpful to read out such information. The order of the information is helpful to build and maintain and organism. The development of such a society is found to be safe and secure in terms of giving healthy information of DNA reports of identifications of the individuals.

Every cell of a person's body has the same DNA. DNA is found mostly in cell nucleus. Adenine, guanine, cytosine and thymine are the four chemical bases in which DNA information is stored as a code. Adenine pairs with thymine and cytosine are paired with the guanine. This sequence in a DNA molecules sis defined as genes. People usually have the same bases of DNA as others. DNA has a special property of replicating that is it can make the copies of its own. DNA forensic has been classified a s a branch of science that relates to contribute towards the use of genetic information in criminal investigation in order to find the answers that lead to legal situations such as criminal and civil cases.

DNA has been a natural phenomena which has a vital role to play in the identification of an individual. The role od DNA has been highlighted in many states of the world. Its signifence can not be neglected in any region.

Basis of DNA analysis

Nucleus of a human cell is contained with 46 individual chromosomes. Among these 46 chromosomes, half of the chromosomes are inherited from the father and half of them from he mother. However, there is no such possibility to evaluate that which chromosome belongs to father or which chromosome relates to mother. Two chain molecules compose every piece of chromosome. The length of DNA is dependent on the chromosomes. For example, the length of DNA will be 6 feet if chromosomes in one of our cell are not coiled together or if chromosomes are placed end to ...