In this lab, we experimented on wingless samples of Drosophila. Now, there are two different types of fruit flies as discovered by Marla Sokolowski; one walks around more than the other. The names Rover and Sitter are given respectively. The main difference between the two types are demonstrated when feeding. Speaking of which, fruit flies don’t feed on the fruit itself, what they feed on are the bacteria that grow on rotting fruit. The fruit flies find food to eat via the use of chemoreceptors, which alert the fly that there is food nearby by stimulating its sense of smell. They will then fly over to the food source and start feeding. Now this is where the difference between Rovers and Sitters comes to play. Let’s say the fruit fly runs out
Variation in selection pressures on the goldenrod gall fly and the competitive interactions of its natural enemies
..., Department of Zoology, Miami University, Oxford, OH, Available from Journal of Insect Physiology. (46 (2000) 655–661)Retrieved from http://www.units.muohio.edu/cryolab/publications/documents/IrwinLee00.pdf
The role of questions in Dunn’s article is to persuade the reader into thinking their own role or responsibility in the behavior of flies. The first question he poses is; “Just where do houseflies pick-up these other bacteria, the one they give back to us in vomit spot, feces and footsteps?” This question is central to his main idea. He poses a second question about the discovery made by his friend named Coby, on pig farms, asking; But why would the flies in pig farms tend to have antibiotic resistant bacteria? Yet again dragging the attention to the issue at hand that is that us humans are largely to blame for the dangers that flies poses to our
In science, these fruit flies can be used to study genes and mutations relatively quickly because of the limited life span. Knowing mating behaviors can help scientists better understand their results and improve their experiment designs to reduce
Richard Conniff uses strong scientific facts in his essay to get his major point across to the audience. One of the major facts he uses stood out as it disproved many a wives tale about the common household fly. Most people think of flies as dirty animals who fed on dead animals and spread disease. Conniff uses a study that found flies tested from dirty areas contained more a lot mor...
Similar to how we used water on both sides as a control in the baseline experiments, our first test was with dim light on both sides. To set up the chamber, we put 52 fruit flies in the double-sided chamber and sealed it tightly. Make certain to get at least 20 flies in the experiment for a larger set of data. That is why we put 52 flies in the choice chamber- to get substantial data. In order to count the number of flies on each side, draw a line going down the middle of the choice chamber to divide it into two halves. Side A is one half, and Side B is the other half. In this lab, we used red, blue, black, green, and 2 white light bulbs throughout the experiment. Additionally, to measure the intensity of the light hitting the choice chamber,
From simple heredity experiments with garden peas, to cloning sheep, the field of genetics has come a long way. Now we are closer to mapping out the human genetic map due to advances in technology, and years and years of research. Perhaps the most influential and groundbreaking scientist, Gregor Mendel, he was responsible to provide a path to where genetics is now today with his experiments of garden peas.
As useful as their tongue is for collecting nectar it is useless in capturing insects hidden inside flowers, even though insects do provide most of the protein...
We investigated the effects of sunlight exposure on leaf stomata density. Our hypothesis stated that stomata density in the leaves with more sunlight exposure should be greater because in the leaves exposed to sunlight appeared to be healthier than the leaves in the shade. Our hypothesis was rejected, and the leaves with little to no sunlight exposure had a greater stomata density.
The objective of this experiment is to determine what genes are responsible for the white-eye color in two strains of Drosophila melanogaster, known as the common fruit fly. Drosophila is used as the experimental organism for many reasons which include its small size, easy maintenance, short 10 day generation time, and a fully sequenced genome. The characteristics of the wild type, which is the most common phenotype found in nature, include brick red eyes, long wings, gray/tan body, and smooth bristles. Of course, there are mutations that occur that cause specific traits to deviate from the wild-type phenotype. These traits include wing length, bristle shape, body color, and eye color.
“Organic Wisdom, or Why Should a Fly Eat Its Mother from Inside.” Ever Since Darwin. New York, New York and London, England: W.W. Norton & Company, 1977.
Biology Lab Report Lab No. 18: Biochemical Genetics: Smooth Peas Wrinkled Peas Data Presentation: The diagram of cotyledon for smooth and wrinkled pea is attached to the next page. The table of starch presents is below: Type of Pea Starch Present? (Color change) Smooth
From here, we can see the differences in the target markets of 7-Eleven and the competitors. As mentioned above, 7-Eleven is focused on meeting the needs of convenience-oriented.
The freshly squeezed citrus juices of Lemon,lime and orange were analysed through titration over the period of 2 weeks. Initially the lime juice was found to be slightly more acidic than the other juices followed by lemon juice and then orange juice since it is known that usually lime is more acidic than lemon and orange. It was hypothesised that the acidity of each juice will increase or decrease after the period of two weeks depending upon the sugar content of that citrus fruit that the juice is extracted from. The acidity of the juice with the highest sugar level will gradually increase over the period of time since sugar contribute to the the fermentation of the citrus juice to lactic acid. The hypothesis was shown to be correct;however
Arthropods are in the kingdom Animalia which is in the subphylum Arthropoda. A species can be classified as an Arthropod if they have an exoskeleton, a coelom, and if they are mostly dioecious. An “ exoskeleton is an external skeleton made of chitin. [A] coelom is fluid filled cavity between organs and body wall” (Babin,2017). Examples of Arthropods are: spiders, ticks, millipedes, and centipedes. The objective of this experiment was to find Arthropods and test. Different habitats were established to see which will produce a greater amount of Arthropod. It was believed that the Arthropod diversity of a shaded area will be more that that of an area near a canal. The shaded area would have more arthropod diversity because more plants would be around it. Since there will be leaves and trees, plant diversity will be greater. Also, having “ plant diversity can positively affect arthropod{s}” ( Bennett and Gratton, 2013) because there will be more arthropods to utilize.