Allele frequency

effect is when a small number of individuals are dispersed to, say a different country, and the new arrivals only carry a small proportion of the gene pool of the ‘parent’ population; the alleles of the colonists are therefore not representative of the parent gene pool and it is largely a matter of chance which alleles are present in the gene pool. However, children of Amish, Jewish, and Mennonite descent have a much higher prevalence than others; this is due to the colonies have a smaller…

O vergrowth syndromes Longitudinal growth results from multifactorial and complex processes that take place in the broader context of different genetic traits and environmental influences (Neylon, 2012). Overgrowth syndromes comprise a heterogeneous group of disorders that lead to excessive tissue proliferation, which is characterized by a phenotype of excessive somatic and visceral growth. A myriad of syndromes are characterized by substantial localized or asymmetric tissue overgrowth,…

Introduction: Cancer is defined by abnormal cell division without control. Colorectal cancer may be develop in the tissues of the colon and/or the tissues of the rectum (PubMed Health, 2015). Colon and rectal cancers arise because of changes that occur in specific genes and it has been notices that these genes play an important role to the cell cycle, angiogenesis and other mechanisms that take part in the growth of cells (Swan, 2005). Colorectal cancer is the third most common cancer worldwide…

Evolution is a change in allele frequency in a population over time. This is the passing of genes from one parent to children. This is not the same thought process that people lean toward. People tend to think of evolution as people evolving from monkeys over time. It is a change in a species over time. Evolution is a change in allele of species over time. An individual carries multiple traits from their parents allowing them to pass these genetics down to their children. This is the theory of…

recognize mutation, natural selection, gene flow, and genetic drift as the latter stated. Mutation and natural selection are two of the processes that can alter the history of a species, but all four have a significant role in altering the genetic frequency. With mutation a change occurs within an organisms DNA sequence. With this change the in DNA it can either be…

individual. In eukaryotes, a single genotype is capable of expressing more than one phenotype (observable characteristics). This possibility is because genes can go through lots of differentiation processes like mutation, changes in gene expression and frequency. So, mutations play a significant role in variation. For example, DNA can be affected by the fusion of chromosomes, aneuploidy, and deletions, duplications, inversions, insertions, and point mutations. Although not very likely, these…

blood cells. Instead of being circle, it becomes a sickle shape. This shape can have a negative effect, but it can also have a positive effect. Some negative effect might be pain, fatigue and death at young age. A positive effect is that sickle cell alleles are resistant to malaria. In this paper I will focus on the history, etiology, genetics, symptoms, diagnosis…

As a result of global warming, there is not a corner of the worlds’ oceans left unaffected by anthropogenic disturbances. The heating of Earth’s surface occurs through a life supporting process known as the greenhouse effect. This is a natural process where heat from solar radiation passing through the atmosphere is absorbed by gases and radiated back to the surface (Bradford A 2014). However, human activities, such as deforestation, industrial processes, and fossil fuel combustion are polluting…

Genome Evolution Did you know that the Tasmanian Devil’s genome is rapidly evolving to resist a deadly disease that has killed eighty percent of their population since 1996? To most people that means little to nothing, because most people don’t know what a genome is let alone the process in which it takes to evolve or for Scientists to discover the evolution. In the following paragraphs we will discuss what genome evolution is, how genomes are able to be compared and how the size can…

To start this experiment, two microcentrifuge tubes were exposed to different ingredients. One was labeled “+DNA,” the other with “-DNA.” They were both filled with different bacteria. More specifically, the “+DNA” tube had pGFP in it and included a plasmid. Included on that plasmid were two genes: gfp (gene for green fluorescent protein) and an ampicillin resistant gene. The gfp gene makes cells glow and the resistant gene fights against ampicillin, which kills cells. This plasmid DNA was…