Step 1. Make Drosophila culture medium First, to prepare a culture medium, four plastic vials were obtained and labeled with numbers 1 – 4. In each of the four vials, two teaspoons of medium mixture were added.…
View the Epidermal Cells of Muhlengbergia and Tradescantia Species 1. Obtain one leaf each from the Muhlengbergia and Tradescantia Species. 2. Place a few drops of tap water onto two clean slides. 4.…
1. (4 points) The results below were obtained from a use-dilution test of two disinfectants. Cultures were inoculated into tubes with varying concentrations of disinfectants and incubated for 24 hr at 20°C, then subculture in nutrient media without disinfectants. (+ = growth; - = no growth) Disinfectant 1 Disinfectant 2 Concentration Initial Subculture Initial Subculture…
This experiment was started with three trays, each of the trays having either basic, neutral, or acidic soil in it. Once there was a hole in the soil of each tray roughly 1cm deep and 2.5cm apart two Brassica seeds were planted in the hole. Next making sure to keep track of which plants were acidic, basic, and neutral thee trays were labeled and note was taken on which tray had which soil on a separate lab paper. After the Brassica seeds were planted they then were placed under constant light for two weeks. two weeks later, the plants had begun to sprout.…
A Chromodoris Kuniei colors are very unique. They have a color variety of Tan, Black, White, Yellow, Orange, and Purple. The Chromodoris Kuniei has a pattern of blue spots with pale haloes on a creamy mantle. There happens to be a double border to the mantle of purple and blue. Its length reaches to be 40mm and their weight is 3-100 grams.…
The Scarlet Ibis In “The Scarlet Ibis” by James Hurst, the colors are brilliantly displayed throughout the text to immerse the reader into this story. One of the biggest connections between in the book is the color red ,it is used often throughout the entire book and even connects to Doodle one of the characters in the book. For example ”Its a great big red bird” is a echo to Doodle as he was born being a very odd red. Another example of a connection is ”It tumbled down, bumping through the limbs of the bleeding tree and landing at our feet with a thud”.…
Determining the impact of Auxin in pea plants, and its effect on lateral bud growth Megan Posey Bio 121-104 John Barry 10/23/16 Abstract Auxin is a hormone that helps to regulate bud growth, cell elongation, and many other aspects of plants. Apical dominance is a phenomenon that occurs due to the presence of auxin and stops lateral bud growth.…
Tapingkae, Taji and Kristiansen (2007) soaked the S. formosa seeds overnight and reported almost 100% germination within 48 hours. It can be concluded from this experiment that soaking time does not affect germination of A. rubida and S. formosa seeds, and change in soaking time will have no different effect on A. rubida and S. formosa…
First, there is not seed growth yet, nor have the seeds sprouted roots. Second, I noticed that the soil seemed a bit dry. I may change the watering from every three days to every two days after doing…
The fourth step was for the colonies to be gram stained and the procedure was performed as followed in the laboratory manual (1). The gram staining showed a result of Gram-negative rods. To interpret which biochemical tests to perform, the Gram positive and negative chart handed out by the professor was referred to. The different tests were preformed to…
Congo red and destained with 1M sodium chloride for 15 min. The clear halo was observed around the colony indicates the cellulase activity. Lipase detection (Samad et al. 1989) The lipase activity was performed by growing the isolates on the peptone agar media (10g peptone, 16g agar, 1000 ml distilled water, pH 7.2) amended 10 ml Tween 80 and 0.01% phenol red (as an indicator).…
Gel electrophoresis is a method used for separation and analysis of molecules such as DNA, RNA, and proteins, based on their sizes and polarity. DNA (deoxyribonucleic acid) is a molecule that carries most of our genetic information, and possesses a negative charge. During gel electrophoresis, DNA fragments can migrate through the gel also known as agarose when placed in a powerful electrical field. The rate at which the DNA fragments will move through the gel depends on their relative size. Horizontal gel slabs are commonly used on conducting gel electrophoresis.…
Annotated Bibliography Ahmed, Sarah. “A Phenomenology of Whiteness.” Feminist Theory. 8.2 (2007): 149-68.…
After reading the Variétés Dans L'Espèce Humaine and On the Origin and Color of Blacks, I do believe that these two primary documents support the statement “scientific racism helped legitimate and justify the tremendous growth of slavery that occurred during the eighteenth century.” (A History of Western Society, p. 540). “The Negroes, on the contrary, are large, plump, and well-made; but they are simple and stupid.” (Variétés Dans L'Espèce Humaine, p.382). According to the article of Georges-Louis Leclerc Comte de Buffon, we can know that people deem blacks by these scientific features, which supported blacks to become accepted and well-known labor force.…
Then the nutrient agar are pour and fill 2/3 full roughly 25-35 ml per petri plate and allowed to solidify for 10 to 15 minutes. Use the spreader to uniformly spread the bacteria. The next stage is the preparation of extracts. In this experiment which using the disk diffusion technique. This experiment use Calophyllum teysmanii, Calophyllum Andersonii and Calophyllum Canum extract and their pure compounds.…