DNA sequences refer to the instructions that usually inform our body in making proteins. It will be realized that the proteins that DNA codes are accountable for the body functions. Basically, genes consist of nucleotides clusters which have coded regions referred to as exons and no-coded regions that are called introns. Studies reveal that proteins are not build directly by genes, because they must first transmit instructions in RNA form. This first stage is called transcription. This is when the DNA code is rewritten into RNA sequence of bases and it actually occurs in the nucleus of the cell. It follows that the RNA which is now formed then travels into the cytoplasm. In the cytoplasm the RNA is translated into proteins by the ribosomes. Studies further show that amino acids in the cytoplasm are sequentially arranged in a sequence that is specified by the codons order, after which they are linked together forming a polypeptide by a process called translation (Tay, Lee & Koh, 2007).
It is often believed that when a disease occurs it is obviously due to faultiness in the instructions that are contained in the DNA. Studies reveal that people who have a definite sequence of DNA in a certain place are more prone to develop a disease. This is a way that is used to recognize those that are actually at danger of developing diseases. Therefore, the genes are sequenced to find whether there is a sequence which is linked with the disease. If there occurs a disease linked sequence, then one’s DNA is able to make him/her be prone to the disease.
Genetic testing through the use of direct-to-consumer kits refers to genetic tests that are offered to the consumers directly through the internet, print advertisements and television, (Rosenberg & Pehler, 2011). This kind of testing offers a person with information on genetics without the effort of the doctor. One collects DNA samples while at home and then mails them to the laboratory. Genetic disorders that can be tested with these kits include cancer and diabetes (Lloyd, 2012, April 23).
Huntington’s disease test helps to end uncertainty. This is because people who have positive results have a lesser risk of depression and this brings about certainty, because they indeed have a greater sense of being well psychologically. Another reason is that if the results appear to be negative there is a developed certainty as people are aware that their children will not inherit the disease (Lloyd, 2012, June 7).
An advantage that arises from companies marketing these kits is that they are able to predict on the development of the disease (Rosenberg & Pehler, 2011). Another advantage is that the people prevent the diseases with the continued use of these kits. On the other hand, these kits are very expensive and they usually provide incomplete knowledge. Companies should not be allowed to market these kits freely; they should instead apply for approval of these tests so that these kits can be considered as medical devices.
It is important to carry out a generic test so as to make future informative plans. One is able to make informed future plans about his/her career, reproduction, finances and matters concerning marriage (Lloyd, 2012, April 23). In case I have a Huntington disease, I would prefer not to have children, because having children would lead to increased medical expenses, since the disease is hereditary. It also reduces the level of depression in the family, because having children will involve greater financial expanses (Lloyd, 2012). In most cases due to acuteness of the disease one may be forced to quit his/ her job which, in turn, may lead to increased hopelessness for those who have children. This is because the children suffer from the same disease due to its heredity and they require a lot of care which, in turn, results in depressions and a less focused future.