Gene Logsdon

Planarian Segmentation and Regeneration Summary We started out by picking our worms out of their original containers then transferring them to a petri dish, then pouring in enough spring water via a pipette to sustain the worm, without providing too much as it could potentially escape. The water was necessary otherwise, the worm would dry up and die. We then took a small razor blade and made our initial incisions, having the option to cut once or cut up to three times. I chose to cut my planarian

allergen is a whey protein present in milk. In order to decrease the concentration of the BLG protein, researchers found that producing an individual with a non-functional version of the gene would silence the effects of the protein. Scientists in New Zealand created a genetically modified cow where they have reduced BLG gene activity and therefore the BLG content in the cow’s milk. Daisy the cow has been created to produce milk that contains undetectable amounts

In spite of years of investigation in immunology, mechanisms that regulate the immune system in the bovine reproductive tract have received only little attention. This could be due to the complexities of the immune and endocrine system and also to the difficulties of conducting experiments in this field. The oviduct is an essential component of the female reproductive system that ensures successful reproduction [2]. Physiologically, the mammalian oviduct not only serves as a conduit for the transport

uracil and thymine is the 5th position of the ring structure. Genetic mutation occurred so a CH3 group was added onto the 5th position of uracil to form thymine. Not only RNA has catalytic activity as pointed above, it also has the ability to control gene regulation, which is known as riboswitch. The ribosome is one of the most ancient molecules in our cells. In addition, ribosome is composed of RNA and a protein called Ribonucleoprotein. If the majority of protein content is eliminated, protein synthesis

I think the ethics and morals regarding genetic engineering are very complicated. It’s intriguing, but my inability to see things as just black or white is frustrating. I can’t entirely decide if i’m for or against it. If “faith babies” are treated as second-class citizens and relegated to menial jobs in GATTACA then how come all of us here in the 21st century are still so successful and talented? We have the ability to become surgeons, mathematicians, architects, etc, regardless of our conditions

15- Determination the activity of cytochrome p450 ( Estabrook and Werringloer ,1978) Principle: Cytochrome P-450 is a haemoprotein. When the haem Fe3+ is reduced to Fe2+ by the addition of sodium dithionite and complexed with carbon monoxide giving p450-cocomplex, a characteristic absorption spectrum can be measured. The reduced, carbon monoxide complex, has a maximum absorbance at approximately 450 nm. The extinction coefficient, 91, has been accurately determined for the wavelength couple 450

(adapted from Larsen and Arias 2014). Although mucin is an essential component of mucus, little is known about the evolution of mucin genes or other genes associated with the maintenance of mucosal linings, their expression patterns or what specific role mucins and associated genes play in mucosal barrier function and immunity in cnidarians (Schama et al., 2012). As a defence against infectious and external stimuli, the mucosal barrier has evolved to respond

The unique and primary proteins of DNA, the highly basic histone proteins have been found to be ubiquitous and conserved among eukaryotes. DNA and histones co-exist as a closely associated and highly coiled structure. The purpose of such a structural organization is to compact DNA; which would otherwise be too long to be accommodated within the restricted boundaries of a single cell. Core histones (H2A, H2B, H3 and H4) and Linker histones (H1) are the two types that this unique protein is composed

Prokaryotic and Eukaryotic There are two basic types of cells, prokaryotic cells and eukaryotic cells. The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus. The nucleus is where cells store their DNA, which is the genetic material. The nucleus is surrounded by a membrane. Prokaryotic cells do not have a nucleus. Instead, their DNA floats around inside the cell. Organisms with prokaryotic cells are called prokaryotes. All prokaryotes are single-celled

How will rising antibiotic resistance impact primary healthcare? It was in the middle 1800s when the medicine started gaining a shape, scientists are nowadays still struggling to smooth. Once the Germ Theory was accepted the importance of microorganisms was revealed. It is since then that science tries to understand and combat the little enemies living inside us. Bacteria are the smallest microorganisms being known by their astonishing dividing capacity. They divide by binary fussion meaning that