What Is DNA?
1. DNA is the short form scientific name for Deoxyribonucleic Acid. Dna is the carrier of genetic information for all complex organisms. Dna is shaped like a twisted step – ladder. The double thread of the ladder consists of two phosphate – sugar strands bridged by many pairs of nucleotides. The genetic information is carried within this twisted rope ladder. Dna is composed of four basic building blocks known as nucleotide bases. The name of these building block chemicals are Adenine – Thymine – Guanine – Cytosine. No two individuals share the same DNA profile unless they are identical twins. This different sequence in DNA determines genetic individuality. 1. B) What is a human cell ? 1. Each human individual is made up of trillions of microscopic cells. These cells are too small to be seen with the human eye. Cells come in a variety of shapes and sizes.
DNA (deoxyribonucleic acid) is found in all the cells of our body, it is our blueprint and DNA molecules are passed down through generations within a family. The molecular structure of DNA is likened to a twisted ladder made of two strands, known as a ‘helix’. The strands of DNA contain information in the form of a code, which in turn determines our individual traits and characteristics. There are four types of DNA building block and the order in which these occur is our genetic code.
DNA stands for Deoxyribo-Nucleic-Acid and is basically a long and complex molecule that carries information in the form of a chemical code. This code will tell the body and cells how to grow and form. This chemical code is unique in every single person, thus the analysis of the chemical code gives the ability to perform highly accurate testing of relationship, identity, etc.
DNA, which stands for deoxyribonucleic acid, is the genetic material found in all living things. It controls how our bodies function and what characteristics we inherit from our biological parents. We inherit our DNA in equal portions from our biological mother and father. Therefore, we share 50% of our DNA with our mother and 50% with our father. Full biological siblings (children sharing the same biological mother and father) also share much of their DNA with each other. To a lesser degree, we also share DNA with other relatives such as our aunts, uncles, and cousins.
