The main goal inathe experiment was to determine theainheritance pattern of aaparticular mutation. A asecondary goal in conductingathis lab was to study and comprehend mendelian genetics. In this experiment, Drosophilaamelanogaster, commonlyaknown as fruit flies, were used to studyaand understand the principles of mendelianagenetics. D. melanogasterawas also used as a model to identifyathe patterns of inheritance of certainamutant traits in fruit flies. Mendel’salaw ofasegregation is important in understandingagenetic inheritance. It statesathat each pair of homologousatrait carrying particles segregate during meiosis and each subsequent generationaresults in an equal distributionaof alleles at eachalocus (Mendel, 1866).
In this experiment, weawere investigating fouradifferent inheritanceapatterns:aX-linked recessive, X-linkedadominant, autosomaladominant, and autosomalarecessive. An X-linked monohybrid cross is aacross in which the specific trait of interest …show more content…
Afterafertilization, the embryo expands into an egg on the firstaday at roomatemperature. The eggahatches into aalarva afterathis perioda (Jennings, 2011). Thereafter, the larvaamoves around and eatsain order to grow consistently for a period ofafive days dependingaon the temperature. Foraexample, ata20°C the meanalength ofaegg toalarva duration is around eightadays, while ata25°C the duration can take up toafive days (Va et al., 2009). During this periodaof growth, the larvaamolts threeatimes. Pupationahappensaafter fiveadays and anaadult fly is formedathroughathe process of metamorphosis. When the process isacomplete, the adult fly comes out of theapupa shell. Sex characteristicsaof the fruit flies observedawere the bodyasize, theaabdomen, and the sexaorgans. Female fruit flies are generallyabigger in body size than males. Females haveainterspersedablack and white stripes on their rear end, whileamales have their stripesafused at
In this experiment, weawere investigating fouradifferent inheritanceapatterns:aX-linked recessive, X-linkedadominant, autosomaladominant, and autosomalarecessive. An X-linked monohybrid cross is aacross in which the specific trait of interest …show more content…
Afterafertilization, the embryo expands into an egg on the firstaday at roomatemperature. The eggahatches into aalarva afterathis perioda (Jennings, 2011). Thereafter, the larvaamoves around and eatsain order to grow consistently for a period ofafive days dependingaon the temperature. Foraexample, ata20°C the meanalength ofaegg toalarva duration is around eightadays, while ata25°C the duration can take up toafive days (Va et al., 2009). During this periodaof growth, the larvaamolts threeatimes. Pupationahappensaafter fiveadays and anaadult fly is formedathroughathe process of metamorphosis. When the process isacomplete, the adult fly comes out of theapupa shell. Sex characteristicsaof the fruit flies observedawere the bodyasize, theaabdomen, and the sexaorgans. Female fruit flies are generallyabigger in body size than males. Females haveainterspersedablack and white stripes on their rear end, whileamales have their stripesafused at