Step 2. Observe adults First, to observe the adults, two capped glass vials containing culture medium and Drosophila from larva to adult stages were obtained. Each of the two vials was carefully observed one at a time for natural and mating behavior.…
As well, I noticed that once a pill bug wandered into the colder chamber, they would tend to stay. One thing we could do to further improve the experiment is to add more pill bugs to the chamber, in order to help prove the test's reliability.…
Did research on what males and females look like. We observed the frozen flies. On the first week we used fly nap as an anesthetic for the flies and waiting for them to fall asleep. We sexed the flies and put 10 male and 10 female into a tube.…
As a group we have taken two sterile plastic vials and placed a cup of Drosophila medium powder into each one. After adding a cup of the medium with added half a cup of distillated water into the plastic vial, which allowed the medium to dissolve into it. We allowed a few minutes for the media to be absorbed and afterwards we applied a cotton plug to close the entrance to the vial. Anesthetizing the Drosophila flies In the lab, we had the fruit flies already asleep in a green bucket filled all the way up with ice.…
During the experiment, several materials were needed to perform the experiment with ease. Ten crickets were needed and were provided by the teacher of the class. A clear container, including a lid, was also needed to contain the crickets. As well as crickets and a container, the lab required a working computer, with the Logger-Pro application already downloaded onto the computer. Many different devices, such as a carbon dioxide sensor and incubator, were needed to obtain the results of the experiment.…
The Effects of Phenotypes on Predatory Selection Pressure Faith Farmer BIOL 107-512 10/15/15 Introduction The purpose of this experiment is to evaluate how different phenotypes influence predation patterns in Dottus variegatus. In nature, observations of animals such as insects and predatory birds indicate that predators select against organisms with phenotypes that do not blend in with their environment. In this lab, dots and their colors represent the species Dottus variegatus and the different phenotypes.…
The fruit flies does deal with dominant vs. recessive for the wing traits. Complete dominance occurs when the dominant allele complete cover (hide) the recessive allele. This occurs to the wing traits in the fruit flies. Normal wings are dominant over vestigial wing and base on the data, the female that carries the vestigial wing did not create any F1 generation of vestigial traits. This occurs because the male has normal wing so when the two parent meet; the dominant normal wing in the male completely cover up the recessive vestigial wing in the female traits.…
Michael Heile Nelson 3 English 11 Honors April 29 2016 Honeybee Population Crisis Bees are very crucial to our society. They pollinate over $14 billion worth of crops each year (Ballaro and Warhol). With that amount of money you could buy almost 15 new Viking stadiums each year. They are so valuable to our society and if the bee population goes down, the human population will soon follow. Although many people are unaware of the shrinking bee population, scientific evidence has proven it to be a major problem.…
rine shrimp have been on this planet for almost 600,000 years. Their eggs can stay alive for years without being put in water because the eggs are covered in a dry cyst. Brine shrimp can live in a minimum of 1-2% and a maximum of 25% salt, that’s why they are easily found in places like the Great Salt Lakes over in Utah. Brine shrimp tend to be more active and drawn to strong bright light. When Brine shrimp are fully grown they, will have molted about 15 times and their length will only be about 1.3 centimeters.…
For this experiment my hypothesis was correct. The control petri dish germinated nine out of ten radish seeds, and the acid rain petri dish germinated zero out of ten radish seeds. For the second experiment, I said in my hypothesis was that both sets of plants, that were given the acid rain solutions, would underperform compared to the control; and the set of plants given the acid rain solution with a pH of three would underperform the control, as well as, the set of plants given and acid rain solution with a pH of five. For this experiment my hypothesis was half correct. Group B, with the acid rain solution with a pH of three, underperformed both group C, with the acid rain solution with a pH of five, and group A, the control.…
For this lab we conducted a population genetics study on the frequency of wild and apterous flies within a small population of fruit flies. The fruit fly Drosophila works well for genetic and evolutionary geared studies because they have a relatively short generation time but are intricate enough to reveal some biological principles that are parallel to many different kinds of eukaryotic organisms. When exposed to artificial selection in laboratory experiments, fruit flies have experienced dramatic changes behavioral and evolutionary traits within ten generations or less (Goldsmith, 1991). It is important to note that wild flies have wings and apterous flies do not. The purpose of artificial selection is for humans to modify species over generations by intentionally breeding two organisms with the objective of acquiring a specific trait.…
Abstract This experiment is about the effect of microwave radiation exposure on the percent that radish seeds germinate. The hypothesis in this experiment is if the radish seed is placed in the microwave for 8 minutes, then the percent of germinated seeds would be the lowest out of all the times. This experiment is important because if something happens and radish seeds are exposed to microwave radiation people would be able to know if the radishes would germinate if they knew the time they were exposed. This could also be used to find out if people could grow radishes in space because there is a lot of microwave radiation.…
Drosophila Lifecycle: The fruits fly life cycle starts when the female drosophila lays her eggs on a piece of fermenting fruit, or sweet organic material. A female drosophila can lay upto 500 eggs. After eggs hatch into small white larvae, they eat from their nesting site for four days, absorbing the nutrients and energy needed to transform into adults.…
Papa Roach and Mama Roach They must have come through the walls, just like ghosts, or like characters from a different dimension. I needed an explanation and met a scientist. I was in tears when I told him my story. Then he looked up as if searching for the right answer on the ceiling, and said, “well, you know roaches can survive a nuclear explosion?” Really?…
This review article describes how the mating decision of Drosophila fruit flies is dependent of first the male’s choice to mate and then the female’s choice to accept or reject the male. The article simplifies the mating by the neurobiology behind the male’s choice and then the female’s choice. Furthermore, the article describes how males rely on chemical signals to detect suitable courtship objects and distinguish female flies from males. According to the article, males courtship is based on pheromone detection which then elicits courtship singing. The neurobiology behind male pheromone detection and processing including how the chemical compound of the pheromone interacts with specific odorant receptors in the brain of male fruit flies is…