Microscope

Gene crossover, the exchange of genetic material between two homologous chromosomes, can be observed in many different instances with the help of model organisms. Many scientists observe gene crossover to better comprehend the heritability patterns of unrelated genes (Chen and Olive, 1965). In the case of this experiment, the use of Sodaria allowed students to observe the inheritance pattern of two different phenotypes when crossed in a a petri dish (Saleem, et al., 2001). Sordaria, a…

and sepia eyes. The male’s genotype was dd when it was Vestigial and TR when it had a tan body and red eyes. After mating the flies and waiting “Two weeks” which was really a few seconds for the offsprings to develop, I sorted the flies under the microscope. I then counted the offsprings and how many were Wild type and how many were Vestigial and later with the offsprings of the Drosophila melanogasters that had tan and black bodies with sepia and red eyes. F1’s genotype, which is the offspring…

small town in rural India in a family of doctors I was exposed to the field of medicine early in life. I and my twin brother loved to accompany my father to his clinic, where we spent hours looking at the fascinating world beneath the lens of the microscope. My resolve to work in a medical profession only grew through my undergraduate years, and so I worked tenaciously to get into one of the best medical schools in India. Exposure to the field of radiology came while I was working as a primary…

The scientific revolution was so revolutionary because it was the transition from using political and religious principles to science and reason to explain natural experiences/events. Because religion became less enforced/important after the Protestant Reformation, people lost faith in the Church’s reasoning and explanations of the world, so scholars and philosophers, such as Descartes, Galileo, and Bacon, started to perform experiments and use logic and reason to explain the world. Before this…

Next, examine a prepared root tip slide under a light microscope to survey and count a hundred cells in various phases of the cell cycle and record the data. The next activity involves preparation of a root tip slide with the addition of hydrochloric acid (HCl) and Toluidine blue to aid in the detection of phases…

Anoxybacillus flavithermus AK1 is a thermophilic bacterium that is able to survive at temperatures ranging from 55 to 60°C. The AK1 strain was isolated from the hot spring “Al-Ain Alhara” located at a distance of 50 km southeast of the city of Gazan, Saudi Arabia. This study presents the morphological characterization of A. flavithermus AK1, includinga detailed description of its complete genome sequence. A total of 50 contigs were used to produce a genome sequence of 2,630,664bp that includes 2…

When conducting the different tests and streaking, aseptic techniques were followed. For every T-streaked that was done, the inoculating loop was first flame for 5 seconds and was allowed to cool for 30 seconds. Afterwards the tube containing the mixed unknown bacteria was then passed over the flame. The inoculating loop was then inserted into the broth and then carefully streak on quadrant one of the plate. Afterwards, the loop was sterilized by the flame and was allow to cool for thirty…

periodically for the sexual development i.e perfect state. Mating can be observed by seeing the dense filament growth surrounding the colony and is confimed by observing dikaryotic filaments, clamp connections, basidia and chain of basidiospore under light microscope as compatible mating type (Wicks BL et al, 1996; Halliday CL et al, 1999) or stereoscope Niko- SZ-PT (Ohkusu M et al, 2002). Slide Mating Methd (Fraser JA et al, 2003):- In this method a sterile glass slide is placed in a sterile…

One of the stories that I truly enjoyed was "The War of the Wall" by Toni Cade Bambara. The story revolves around an artist, whom other characters call her "The painter lady" that visits a town in the south of America to paint a mural dedicated to her cousin and the community itself on a wall that is located in Taliaferro Street. This essay will analyze two of the painter lady's characteristics. Firstly, it will introduce the trait. Secondly, it will offer evidence from the story, an…

it is illegal to use in most countries today. Blue asbestos is the most deadly and is though to be responsible for most of the deaths caused by asbestos. Once an asbestos fibre is lodged in your lung it can stay there for life. When viewed from a microscope the fibre will appear as a pin. When cells try to encapsulate the asbestos fibre they are popped by the pin shaped asbestos fibre. This is why the asbestos fibre is deadly. Asbestos is fire resistant, strong, light, cheap and resistant to…