Drosophila

The effect of different substances on the number of fruit flies Maya Nalawade, Erik Pan, Alec Chen Introduction The fruit fly is a species of the common housefly, known as Drosophila Melanogaster. But for our convenience, we are utilising a certain genetically modified species without wings. Adults typically grow to approximately 1/8 inch long and have red eyes. The front portion of the body is tan and the rear portion is black and striped. Fruit flies are especially attracted to…

Drosophila Paper Discussion Portion Discussion The hypothesis was supported during the experiment. We originally hypothesized that if parental strains of stock D. melanogaster were mated, the ratios of the phenotypes in the F1 generation would be completely random and follow the laws of segregation and independent assortment. Under such assumption, the 3 genes examined in this experiment would not be linked, and the final observed number of F1 flies with each phenotype would equal the expected…

Introduction Fruit fly Drosophila melanogaster that is used as a model to study genetics for more than a hundred years. Thomas Hunt Morgan, in the early 1900’s, used the heritable traits of a common species of fruit fly to develop our understanding of genetics. Morgan was the first to show through experiments that genes were located on chromosomes. He also found that certain fruit fly traits like eye color are found on the same chromosomes that also determine their sex. Fruit flies have several…

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…

Fruit flies (Drosophila Melanogaster – Figure 1) have been a model system for research on all levels of biology. Their small size, relatively cheap pricing, and short lifespans make them easy to care for and breed. More importantly, the fruit fly genome is completely sequenced, with 77% of searched human genetic disease genes matching 548 unique drosophila gene sequences (Reiter et al., 2001). This relationship between the genome of fruit flies and that of humans ensures fruit flies are…

Drosophila Melanogaster, or better known as the common fruit fly, is found all over the world and referred to as the cosmopolitan species (Mitrick, 2010). This fruit fly has three main body parts, which include the head, the thorax, and the abdomen. On males, the bottom half of the abdomen is black, while on the female, each segment of the abdomen is striped black. Drosophila have four main stages to their life cycle. These include: egg, larva, pupa and adult. The eggs small and translucent eggs…

Examining the inheritance patterns of genes of Drosophila melanogaster controlling some traits of eye color, body color, and wing shape by analyzing dihybrid crosses Csilla SzepeIntroduction Our report will describe the experiment of three dihybrid crosses where we would like to understand if certain traits of Drosophila melanogaster follow the pattern of autosomal, unlinked inheritance. The subject of our experiment is the fruit fly because it has a short, two week long life-cycle that allows…

Drosophila melanogaster is also known as the fruit fly. It “has played a central role in developmental biology during the twentieth century”. The fruit fly is considered a model organism for many reasons. Drosophila is low maintenance creatures that are easy to care for. Since they are such a small size, scientists are able to control numerous amounts of the Drosophila melanogaster at any given time. Drosophila reproduces many offspring and the offspring are created in a very fast fourteen-day…

Scientists have been using various organisms to perform experiments and do research to understand the various phenomenon that relates to human since doing experiments on human is against the law of human right. Drosophila melanogaster (fruit flies) is one of the model organism that can be used for various applications. In this experiment, the fruit flies were used to observe the basic genetic mechanism, leading to understanding the mode of inheritances of other organisms since they all share…

Hans Zellweger, a Swiss American professor of pediatrics and genetics at the University of Iowa in the mid-1960s described the familial disorder among siblings that was later named after him for the recognition of his discovery, the Zellweger Syndrome. Peroxisomes are cell structures that break down toxic substances and synthesize lipids (fatty acids, oils, and waxes) that are needed for cell function. Peroxisomes are what is needed for normal brain development and its function and it’s what…