Model organism

All cells are derived from pre-existing cells - through the process of meiosis and mitosis 4. In a multicellular organism, the activity of the entire organism depends on the total activity of its independent cells 3 Significance of technological advances to developments in the cell theory Assess the impact of technology including the development of the microscope on the development of the cell theory The development of cell theory has been heavily impacted by the improvement of technology. The…

filamentous fungi .The morphology of these micro-organism in submereged culture varies between the pelleted and the unrestricted filamentous form, depending on the strain and the culture conditions (Braun et al., 1991).The fungal morphology for these fermentation is of great importance since it affects the rheaological properties of the fermentation broth and consequently its mass, heat and transfer characteristics . The morphology of filamentous ,micro-organisms during upon the culture…

elegans an ideal model organism for studying the genetics of behaviour, development and neuroscience. The reproductive cycle (four larval stages) lasts for just up to three and half days while each organism is capable of yielding about 300 progenies. The fact that Hermaphrodites can reproduce either by cross- or self-fertilisation allows for the viability of mutant…

preference. Terrestrial isopods are commonly known as pillbugs, sowbugs, or “roly-pollies”. These organisms are members of the Phylum Arthropoda, Class Crustacea. Isopods are omnivores that generally feed on decaying material, algae, moss and bark. Because isopods respire through gills, they are more restricted to areas with high humidity, particularly under rocks or logs, in leaf…

Simpler than eukaryotes, but complex compared to bacterial cells, Archaea are single celled microorganisms that are similar to bacteria in size and simplicity of structure but more closely related to Eukaryotes when it comes to molecular organization. They are believed to have evolved before Eukarya and after Bacteria which can be proved by microfossils traces, biomarkers, and more. Archaea at first seemed very similar to Bacteria, and many were categorized as such. Only later was the new domain…

with gram-staining the organism. After viewing beneath a light microscope, the unknown showed pink rods, proving to be gram-negative. The observation of motility was made by viewing the bacteria moving towards a specific direction. The next tests utilized in determining the unknown was oxidation tests such as oxidase, catalase and nitrate reduction tests. The most pertinent of these tests in the identification process was the oxidase test which was negative, meaning the organism is a…

appropriate procedures (e.g., use of instruments, materials, organism) in all science inquiry. • SCO2S1 C4 PO 1. Communicate the results and conclusions of an investigation (e.g., verbal, drawn, or written). NGSS 3-LS1-1. Develop models to describe that organisms have unique and diverse life cycles but all have in common birth, growth, reproduction, and death. Materials: Picture cards Frayer Model…

Cloning Background information: Cloning is a process where the DNA is replicated. It is done by having the DNA of an organism, human or animal, is put into an egg whose DNA is removed and when the egg is stimulated, the egg starts to duplicate. The results would be DNA is which genetically similar to the original organism. Cloning can also be applied to cells. The first mammal that was cloned successfully from an adult cell was the sheep named Dolly in the year 1996 by Scottish scientists in the…

INTRODUCTION Microbes are those microscopic organisms that can cause diseases in the human body. These microbes migrate with locomotive organelles called FLAGELLA, a very vigorous nanomotor that is highly conserved across bacterial species. Flagella allow the microbes to move towards favourable environments. Further studies on flagella has revealed that it not only serves the purpose of locomotion but also plays a very crucial role in bacterial pathogenicity(14). A flagella has mainly three…

environmental pressures, one aspect that is both critical and necessary is the ability for organisms to be able to regulate gene expression. Amongst bacterial species, one gene that has been identified as a main factor is the cell-cycle transcriptional regulator, known as ctrA. It controls at least 25% of the genes involved in the cell cycle process (Mercer et al., 2010). ctrA has been highly studied in the model organism, Caulobacter crescentus, in which it is responsible for controlling…