What is DNA? What is it used for?
What is DNA? What is it used for?
Forensic science uses techniques developed in DNA research to identify individuals who have committed crimes. DNA from semen, skin, or blood taken from the crime scene can be compared with the DNA of a suspect, and the results can hold important information that can put a criminal in prison, DNA doesn’t lie. DNA is not just used in forensic science but also in medicine. Through DNA technology, scientists can change microorganisms so that they become medicine. This technology is used to produce insulin, which is a drug used by diabetics, and interferon, which is used by some cancer patients. Using this powerful, weapon you can manipulate organisms to make products that benefit humans. Using Biotechnologies, you can alter food production, waste disposal, mining, and medicine.
DNA stands for Deoxyribonucleic Acid. A molecule of DNA consists of two chains, that have chemical compounds called nucleotides. These chains are arranged like a ladder that has been, called a double helix. Each nucleotide consists of three units: a sugar molecule called Deoxyribose, a phosphate group, and one of four different nitrogen-containing compounds called bases. The four bases are adenine (A), guanine (G), thymine (T), and cytosine (C). The nucleotides in one DNA strand have a specific association with the corresponding nucleotides in the other DNA strand. Because of the chemical affinity of the bases, nucleotides containing
adenine are always paired with nucleotides containing thymine, and nucleotides containing cytosine are always paired with nucleotides containing guanine. The complementary bases are joined to each other by weak chemical bonds called hydrogen bonds
The DNA is located in the exact center of the nucleus. As you see, Guanine is always attracted by Cytosine, also Thymine is attracted by Adenine. Different variations of those four chemical compounds create different organisms of species that called a Repeat Sequence.
For example, the Repeat Sequence, for the human species is TTAGGG. As for yeast its (TG)1-3TG2-3. So different species, have different formulas. If DNA makes one wrong, misplacement of any chemical, the organism can be corrupted, and well die soon. People who have corrupt or mixed DNA have Down syndrome or commonly called Mongolism disease. This disease causes people, to have learning disabilities and physical symptoms...