Allele

through several adaptations and variation genetically that fit their living conditions. In fact, scientific method emphasizes that a single answer cannot depict the whole picture of the biological evolution. The reproductive barriers and the spread of allele frequencies are based on the complex social adaptation. Over time, phenotypic traits and genetic variation seem to be heavily derived from the ancestors. Moreover, natural selection is a key microevolutionary force that is involved in every…

bacteria appear via mutations that introduce an antibiotic resistant gene and then evolve by “Survival of the Fittest". In presence of antibiotics, alleles providing bacteria with resistance are under strong selective pressure. Hence, surviving strains will be in a competition free environment, they will grow and reproduce rapidly. The resistance allele can also be propagated via conjugation and horizontal gene transfer. Mechanisms of resistance employed by bacteria include: drug inactivation…

An Overview of the Determinant of the Genomic Diversity Genetic diversity provides variation in which that selection can act upon and it determines the response of population towards environmental change. Therefore, knowledge in genetic diversity is crucial for developing breeding strategies and also for the management of endangered species. Understanding the determinant genetic diversity is also essential for resolving the long-standing riddle in population genetics, the disproportionately…

Alzheimer’s is an irreversible disease that has been preying on minds and families for years. The disease causes the brain to decay. It kills nerve cells and causes tissue loss. If have been living with the disease for a long period of time, the brain will reduce in size as well. There is also plaque everywhere. Plaques are built up of protein parts. These also tangle, so your brain becomes chaotic and disorganized. This deformation can even start 20 years before the disease is diagnosed. All of…

observing our genetic similarities with other species and can almost date our creation into existence. Although many theorize that evolution can’t be proven, scientist have enough evidence to back up the existence of evolution. Evolution, the change in allele frequencies in a population over generational time, is associated with Charles Darwin. Darwin is critically known for his theory of evolution and is the “go to” when evolution is up for discussion. His theory encompasses the idea of…

individual. Research suggests the risk to be fifteen fold or higher in Caucasian populations [15]. Zick et al. (2005) suggested that there is an increase in long-term care life insurance costs, due diagnosis of this allele. So, if your ancestor was tested by another family member who had a risk allele like this, it could put you at risk of discrimination. We must weigh the effects genetic testing could have on the few who possibly weren’t knowledgeable about this test of their grandfather…

3. Why a malaria vaccine is required? When microorganism enter the body, the immune system fight these foreign antigens by production of T or B-lymphocytes that produces antibodies, which effectively neutralize foreign invaders. Human body take several days to produces antibodies, while microorganism attack and multiply in the body and produce serious illness before immune system can fit back, this is a reason behind the vaccine manufacturing and development (CDC, 20175; Sarkander et al., 2016;…

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,…

Genome editing is a fairly new area of science as well as it theoretical benefits it also has it drawbacks, according to (incite reference). It 's is where genes are cut, deleted or inserted in the DNA which in turn changed the sequence of DNA of an organism or cell Various engineered nucleases can be used to carry out the genome editing, this include TALENs (Transcription activator interspaced nuclease), ZFNs (Zinc-finger nuclease) and CRISPR-Cas9 (Clustered regularly interspaced palindromic…

In biology “Evolution” is defined as the change in genetic in a population over a period of time, through several generations. Looking at the microscopic scale, evolution meant the mutation in the alleles of a certain genes are passed on to the next and next generations, and over the long period of time, these changes will “culminate in new forms … provides an explanation for the origins of morphological diversity, adaptation, and natural selection” (Bergman). As far as, in Stearns et al…