Genome Case Studies Samples For Students

Environmental and Nutritional Requirements of Lactobacillus casei

Lactobacillus species have attracted considerable attention during the past few years due to the health benefits to the gastrointestinal tract when they are added as probiotics to food products such as yogurt and other fermented milk drinks (Broadbent, Larsen, Deibel, & Steele, 2010). In general, Lactobacillus species exhibit very complex nutritional and environmental requirements for optimal growth. Particularly, Lactobacillus casei is a rod shaped, aciduric (prefers acidic environments), facultative (capable of living in aerobic or anaerobic conditions) and mesophilic (temperature range between 15-40°C) lactic acid bacterium. These characteristics allow its isolation from different environments including fermented milk, meat or vegetable ...

1. In your own words explain why this paper is important or significant
The article is very informative and significant since it introduces another breakthrough in DNA sequencing and analysis. It highlights the polymerase chain reaction which is the new way of identifying mutant genes in both homozygous and heterozygous organisms. The technique uses primers to amplify segments of the DNA by many folds such that it clearly identifies the mutant genes faster than all the other methods. The paper points out important milestones that genomics and gene sequencing has undergone over the years. Geneticists usually use the ...

Abstract

In this essay, a description of a non-pathogenic and of a pathogenic microorganism is made. As microbiology aims the study of the microscopic organism that inhabit the ecosystems, the understanding of what are the species present in the biosphere, what are the condition in which they live, what are their metabolic processes and products, and of how can these influence, positively and/or negatively other living forms, including humans, it is essential to study them to know how their caused illnesses be prevented, treated and, furthermore, how can possibly help the health welfare. As examples, the Lactobacillus casei and Clostridium botulinum species of ...