Phenyl Thiocarbanate (PTC) Polymerase chain reaction (PCR) based Research Paper

Phenyl Thiocarbanate (PTC) Polymerase chain reaction (PCR) based genetic analysis of the PTC genotype using human-specific DNA primers - Research Paper Example Phenylthiocarbamide (PTC) also known as phenylthiorea (PTU) is an organosulfur thiorea that has phenyl ring (Karlsson, Et al., 2001). This chemical has a unique characteristic in that it tastes very bitter to some people or has no taste to other people (Woodings, 2012). PTC tasting is a genetically controlled ability to taste PTC and related substances, these have antithyroid activity (F.D. Kitchin, 1959). The PTC tasting ability is governed by a pair of alleles, dominant T for tasting and recessive t for non-tasting. People who have genotypes TT and Tt are tasters while those with genotype tt are non tasters. PTC tasting is determined by the level of dithiotyrosine in the saliva and this may be correlated to the dislike of plants in the Brassica genus among some people (M. Padmavathi, 2013). PTC is not found naturally, however, the ability to taste PTC correlates with the ability to taste other bitter substances that are found naturally. The PTC gene explains 85% of the total influe nce on whether a person is a taster or a non-taster, other factors such as having a dry mouth, explain the remaining 15% (HHMI, 2015). This explains why some people find some food too bitter to taste while other find this food not bitter at all.PTC has a unique characteristic because it tastes bitter to some people and has no taste to others. . PTC tasting is a genetically controlled ability to taste PTC and related substances that have antithyroid activity. Genotype refers to the genetic makeup or composition of an organism.

Effects of Media on Communication Essay Example | Topics and Well Written Essays - 500 words

Effects of Media on Communication - Essay Example For example, Americans can find virtual friends online from other countries who eventually become their real friends. As communication with the virtual friends become more frequent, communication with real friends and family take an opposite direction. This is true not only in social networking sites but with the effects of other media as well such as the television. While one family member spends his time on the computer, another is in front of the television while still another is speaking on the phone. This causes families to be there but not ‘really being there’ for each other. It could also be similar to a family who may all be in front of the television whose communications become problematic as well because each one is concentrating on what is being shown on TV. Members could speak with each other but their communication is not too involved compared to when they have nothing else to do but communicate. This is because their attention is divided. In conclusion, media affects communication in so many ways, positively and negatively. However, people should bear in mind that the things we use to improve our communication do not simply improve or destroy communication on their own but it will take people to do those. Therefore, it is the decision of a person if media will destroy his communication or improve it. After all, everything that is good always have something bad it brings along but it will always depend on the people how they will let these things affect them.