Allele frequency

1 INTRODUCTION Drosophila Melanogaster, also known as the fruit fly, is a most valuable organism in biological research that has made significant contributions particularly in genetics and research. It is used as a model organism in research for several reasons viz. Easily handled, sexually dimorphic, cheap and easy to keep large numbers, care and culture requires little equipments and well understood because of its short life cycle of just two weeks and also Entire genome of drosophila…

Blue People: Family of Troublesome Creek Martin Fugate and his wife Elizabeth Smith moved onto the bunks of Troublesome Creek, an area in Appalachian Kentucky. Martin and Elizabeth together had seven children. The family tried to hide out in the mountains because of the blood disorder that they carry with them. The blood disorder makes their skin turn blue. The blood disorder of how and why the family’s skin turns blue. Some facts about the blue people of Kentucky. The family has lived in the…

Traits are inherited in a variety of ways ranging from dominate or recessive and sex-linked or autosomal. Using different model organism, scientists are able to study inheritance patterns of many generations in a short period of time. Different model organisms are utilized in many different ways. In the case of this experiment, a model organism must have a rapid rate of maturation and reproduction. The use of Drosophila (fruit fly) was chosen for its fast gestation period and ease of trait…

For our table clinic we decided to research Marden-Walker syndrome. Marden-Walker syndrome is a rare inherited connective tissue disorder (3). This disease involves the oral cavity, facial features and other body parts. This disorder has distinct facial features that can allow you to differientiate this disease from others. Marden-Walker syndrome is a very rare disease. It affects males more often then females (4). There have only been twenty reported cases of this disease (4). Specific…

Purpose: The purpose of this simulation is to demonstrate how alleles work and practice the skill of figuring out what genotype is dominate based off of the phenotype of the offsprings. Background info: Fruit flies or Drosophila melanogaster work best in experiments because Drosophila melanogaster has 60% of genes that are mutated, amplified, or deleted in human diseases. Drosophila melanogaster also has a short lifespan which makes them best for quick experiments. They also mate and develop…

Albinism is a skin disease that’s caused by little to no production of melanin. This disorder can affect vison, skin, hair and the person’s ability to tan. Certain genes in our body are responsible for making proteins that are involved in making melanin, which is produced by cells called melanocytes. Albinism is caused when a mutation occurs in one of these genes. It’s also caused by recessive inheritance. This means that a person has to inherit two copies of one mutated gene- one from each…

Genes are what parent passes on to their off spring. The reason that the off spring don’t look identical to the parent is due to a process called crossing over during meiosis.. Meiosis creates new cells that contain different data than that of the parent due to the genes getting shuffled around by cross linking. The chromatids which are parts of the chromosome cross over bits of data making the new cell unique from the parental chromosome. Dividing this way will ensure that the genes will be…

“Chédiak-Higashi syndrome is an autosomal recessive immunodeficiency disorder characterized by abnormal intracellular protein transport,” (Nowicki ,“Chediak-Higashi Syndrome,” para.2). It is caused by mutations of the LYST gene which is also known as the CHS1 gene. This gene makes “a protein known as the lysosomal trafficking regulator,” (Genetics Home Reference, January 2014). They cause the lysosome to enlarge which ultimately causes problems with normal cell function. “Patients with…

The small genome and the short life cycle of Drosophila melanogaster makes the use of this organism proper to understand the role of signaling pathways, mainly the Notch signaling pathway, in the development of sensory organs in organisms. The molecular interactions of some genes with the Notch signaling pathway can help us understand cell differentiation in sensory organs. The gene Hairless shows high levels of interaction with the Notch signaling pathway of Drosophila melanogaster. Hairless…

When both parents are taster and their children not that means that the parent has alleles that are heterozygous dominant therefore their children possess the capability of not being a taster of PTC. 4. The consequence of having a parent that cannot taste the PTC will result if having children that can taste the PTC means that the PTC has…