Michael Gonzalez Caracheo BIOS 221 TA: Paul An encounter with a Drosophila melanogaster: The Fruit fly experiment. Introduction Drosophila melanogaster, which too many of us is commonly known as fruit fly, this fly although small and without much relevance in to this world contributes a major role in laboratories. Is a model organism used in the scientific research fields that relate to evolution and genetics. One of the key role that Drosophila melanogaster has is that it is commonly used monohybrid and dihybrid test crossing. As Dr. Jennings states in her article Drosophila-a versatile model in biology and medicine, “Research using Drosophila has made key advances in our understanding of regenerative biology and will no doubt contribute
We set up a vial agar; it had two drosophila f1female and five drosophila f1 males. After one week pupas were visible and the parental were removed. A week after this the developed f2 drosophilas were counted after being analyzed.
Introduction: The intention of this lab was to gain a better understanding of Mendelian genetics and inheritance patterns of the drosophila fruit fly. This was tasked through inspecting phenotypes present in the dihybrid crosses performed on the flies. An experimental virtual fly lab assignment was also used to analyze the inheritance patterns. Specifically, the purpose of our drosophila crosses is to establish which phenotypes are dominant/recessive, if the traits are inherited through autosome or sex chromosomes and whether independent assortment or linkage is responsible for the expressed traits.
10. Errors and Redesign. Throughout this experiment a number of random and procedural errors were apparent; these errors could have affected the results of the experiment in a number of ways. One experimental error that occurred during the experiment was that some flies became stuck in the food source and died.
thai-Yochum and Caleb Renshaw Lab TA Josh Sukeena BIOL 315 November 20, 2016 Previously Discovered and Named Genetic Mutation Abstract Drosophila Melanogaster, commonly known as fruit flies, are highly important model organisms in pertaining to biological research. The logic behind their recurrent use is due to their: easy culture in the laboratory, brief
Materials 1. Five culture vials 2. 20mL ethyl acetate 3. One fine-tipped paintbrush 4. One anesthetiser jar with cork (two optional) 5. Cotton wool 6. One petri dish 7. Filter paper 8. One disposable pipette 9. One magnifying glass 10. Reference paper Method 1. A disposable pipette was used to soak the cotton wool with ethyl acetate 2. The anesthetiser jar with cork containing the cotton wool was sealed and left for fifteen minutes 3. After fifteen
Short movement between plants as adults, eggs transfer in soil by adhering to stock. Movement in summer caused by over-summering eggs being translocated by wind. Over-summering eggs need “approx. 2 weeks of exposure to favourable conditions” (DEPI VIC) to hatch.
Fruit Fly Lab Alycia Fletcher Biology IB HL March 25th 2010 Fruit Fly Lab Introduction Genes can either be sex-linked or autosomal. If a gene appears mostly in one sex chances are the gene is sex-linked and if it appears frequently in both sexes it is most likely autosomal. Using Drosophila melanogaster, also known as
A2a After collecting all eight samples, they were then placed in the Petri dishes. The Petri dishes were both placed in an incubator. The temperature at that time was 80 degrees Fahrenheit. The samples remained in the incubator for over 24 hrs, by which time, quite a lot of growth was formed.
Kayla Berezne Mrs. Cohen Honors Biology 24 March 2013 Genetic Predictions in the Fruit Fly The Drosophila melanogaster is a fruit fly with a very short life cycle. They can be winged or wingless, and have red eyes or white eyes. The different options are called alleles. Alleles are the variants of a specific gene, and one is received from each parent on each chromosome. (“What Are Dominant and Recessive?”). It was chosen to use winged females and wingless males to predict the offspring in this experiment. The winged allele is dominant, meaning it only needs one allele to physically appear. The wingless allele is recessive, which gets covered up by the dominant allele (“Fruit Fly Genetics”). Each trait has two alleles in the flies’
AP BIOLOGY- Mitosis and Meiosis Cell Division Lab Part 1-MITOSIS summary: In this experiment first the stages of an onion cell undergoing mitosis are going to be observed and every stage is going to be detected and drawn on paper. A brief description to what is going on should be attached to the pictures. This is important to understand the basics of cell division which is necessary growth,repair and asexual reproduction. Second the number of cells undergoing each phase is going to be counted to figure out in which phase the cell remains the most. If interphase is the stage in which the cell grows and prepares for cell division then the
Introduction In most kitchens the small flies that are found are Drosophila Melanogaster also called fruit fly. They are often brought in by ripened tomatoes, grapes and other perishable items from the garden. Drosophila melanogaster is a little two winged insect about 3mm long two winged insect that belongs to the
Example of an insect with incomplete metamorphosis is Dragonfly Like any insects, the dragonfly has a 3-component frame: a head, a thorax, and a protracted thin, segmented stomach. The dragonfly has 2 massive compound eyes that absorb maximum of the head. On the short thorax there are three pairs of jointed
4.14. The accuracy of the data is dependent on the correct controls being in place, Ensuring temperate stays the same throughout all solutions, making sure that the solutions are correct that the weight and size of the eggs are the measured correctly and that when the eggs are removed they are removed at the same time. Some of the eggs were not completely submerged in the solution this may cause some errors in the experiment and may have caused varying results. The eggs were of different sizes this also will cause the results to vary, Gathering eggs of exact size and weight would have ensured the results were correct. The eggs may not have been dried enough also causing results to vary; this can be fixed by ensuring that the eggs are thoroughly dried. The eggs were taken out at a time around about 24 hours, having an exact time to remove the eggs would have eliminated errors.
In this experiment we were able to map the ebony gene in Drosophila m, which is a gene that can affect the phenotypical body colour of a fly but is also required to supress some melanin formation (6). However the ebony gene is found in both cells that produce melanised