Computer repair technician

Mutation in the silencing gene SIR4 can delay aging in S. cerevisiae Gene mutations that affect silencing at HM loci, telomeres and other regions of the chromosome have been shown to relate to stress resistance and aging in Saccharomyces cerevisiae. S. cerevisiae is a species of yeast in which goes through asymmetrical cellular division. Its lifespan is measured by the number of cellular divisions the mother cell is able to complete before death. In the research study by Kennedy et al, the…

The genetic disorder known as Cystic Fibrosis affects about 30,000 people in the us and about 70,000 in the world. The disorder can cause people to have many problems such as difficulty breathing, difficulty digesting food, and many other problems with the lung, pancreas, and many other parts in your body. The disease is caused by a defective gene called the CFTR gene. These genes code to produce CFTR proteins which are used to transport water and particles into or out of cells. This helps…

Writing Assignment 1: Description of Unknown Mutant Allele Phenotype Subtle differences were observed after comparing all body parts of mutant and a wild type D. Melanogaster. It was discovered that normal venation pattern was disrupted in mutant D. Melanogaster. The phenotype mutation (vein pattern) of D. Melanogaster was identified with a different degree of expressivity in mutant D. Melanogaster; this was achieved by differentiating the single line (longitudinal vein 5) on a wild-type wing…

The identification of genes causing non-syndromic hearing impairment (ARNSHL) [http://dnalab-www.uia.ac.be/dnalab/hhh/] has partially resolved the puzzle of clinical and genetic heterogeneity of deafness (1). Among these genes the gene with the most significant impact on the population genetics and genetic counselling is the GJB2 (connexin-26) gene with the mutation c.35delG that accounts for the majority of mutations in deaf Caucasians (2, 3). Studies published so far have reported the…

Prader-Willi syndrome is a genomic imprinting disorder caused by the failure to express SNRPN (small nuclear ribonucleoprotein-associated polypeptide N) gene product. SNRPN is expressed only on the paternal chromosome 15q11-q13, however, the exact genes responsible for Prader-Willi syndrome haven't been identified. People normally inherit one copy of chromosome 15 from each parent. Some genes are active only on the copy that is inherited from a person's father, the paternal copy. Genomic…

Cornelia de Lange Syndrome Introduction Cornelia de Lange Syndrome is rare genetic disease it can affect multisystem disorder that has very serve intellectual disability starting at the time of 2nd trimester. The syndrome is often refer as also Brachmann de Lange syndrome or de Lange syndrome. Its most obvious symptoms are facial features such as body hair (hirsutism) with eyebrows that are arched and meet in midline (synophrys). This paper is inform the more detail about Cornelia de Lange…

Ichthyosis is an incredibly rare, severe and a persistent genetic skin disease that frequently starts in childhood or infancy. A large amount of the body surface is characterized by a dry, thickened, scaling skin. In fact, scaling happens usually over the trunk, abdomen, buttocks and legs. In general, ichthyosis can affect people of all ages, races, or gender. Statistics numbers are especially impressive: over and above then 16,000 babies are born every year with one of the twenty different…

Common tumors are often caused by mutations in the genes that may potentially lead to varying protein structures, which do not correlate with their proper functions (1). Majority of these mutations arise as a result of substituting one nucleotide base pair for another, but a significant number are also from adding or removing one of more of these nucleotides that ultimately disrupts protein translation (1). One of the mutated genes linked to cancer is BRCA1 (2,3,4). BRCA1 stops tumor growth by…

Under normal physiological conditions, the function of the colon and the rectum is responsible for the very last phase of digestion. Water is absorbed from the digested material (mostly liquid at this point) by the colon to form stool. Subsequently, the dehydrated stool then moves into the rectum for storage until signals are sent for its expulsion from the anus (Silverthorn, 2012). When carcinomas occur in either the colon or the rectum, they are collectively labeled as colorectal cancer.…

ability of the body to repair DNA which is damaged mainly by Ultraviolent light as well as various chemical Carcinogens. ” The most common forms of DNA damage occurs via the cross linking of adjacent pyrimidines resulting in the formation of cyclobutane pyrimidine dimers (CPDs)” (1) for example UV light will often make two T 's bases next to each other bind making a dimer. The regions of the cells that are affected by the disease are called the nucleotide excision repair (NER) enzymes. There…