Name: Enrique Vazquez
PS ID #: 1259993
BIOL 3311 Fall 2014
Date: October 2, 2014
Gene: Bar
TA Instructor Name: Fahmi Mesmar
Lab Section: 16258
Writing Assignment 3: Eye morphology of Drosophila melanogaster; Bar mutation effects on ommatidial development of the compound eye.
Introduction:
Drosophila melanogaster have been used for centuries as model organisms due to their relatively small size as well as their inexpensive and simple diet. Fruit flies also have to ability to reproduce in large amounts considering their relatively short life cycles. The advantage of constant reproduction as well as their large polytene chromosomes allow scientists to determine the gene’s location on a chromosome/ proper gene mapping. Because of this, fruit flies have been used in research for a cure of tumorous cancers. Ross L. Cagan and his colleagues targeted multiple pathways which helped analyze the effects of a particular diet of high carbohydrates on the development of tumors and their progression. Several drugs were tested on fruit flies to demonstrate the drug intervention against the enhanced dietary-malignant tumors.
Eye morphology can be spotted by thorough examination of a fruit fly. Arthropods’ eyes differ from those of …show more content…
The Br3 gene provokes a conjoined gene duplication which results in the malfunctioned process of crossing over (Zhang 2003). The genes being linked in the chromosome can contain an entire gene, a segment or none at all. Altering gene dosage is rarely tolerated by any other organism that is not a plant; organisms such as Drosophila have to adapt to these conditions and continue their pupae development into adulthood. Those flies affected by this particular allele will result in the elongated/ narrow tube-like eye shape.
The br5 allele is known as a loss of function allele responsible for reducing the normal function of a fly’s gene. This
PS ID #: 1259993
BIOL 3311 Fall 2014
Date: October 2, 2014
Gene: Bar
TA Instructor Name: Fahmi Mesmar
Lab Section: 16258
Writing Assignment 3: Eye morphology of Drosophila melanogaster; Bar mutation effects on ommatidial development of the compound eye.
Introduction:
Drosophila melanogaster have been used for centuries as model organisms due to their relatively small size as well as their inexpensive and simple diet. Fruit flies also have to ability to reproduce in large amounts considering their relatively short life cycles. The advantage of constant reproduction as well as their large polytene chromosomes allow scientists to determine the gene’s location on a chromosome/ proper gene mapping. Because of this, fruit flies have been used in research for a cure of tumorous cancers. Ross L. Cagan and his colleagues targeted multiple pathways which helped analyze the effects of a particular diet of high carbohydrates on the development of tumors and their progression. Several drugs were tested on fruit flies to demonstrate the drug intervention against the enhanced dietary-malignant tumors.
Eye morphology can be spotted by thorough examination of a fruit fly. Arthropods’ eyes differ from those of …show more content…
The Br3 gene provokes a conjoined gene duplication which results in the malfunctioned process of crossing over (Zhang 2003). The genes being linked in the chromosome can contain an entire gene, a segment or none at all. Altering gene dosage is rarely tolerated by any other organism that is not a plant; organisms such as Drosophila have to adapt to these conditions and continue their pupae development into adulthood. Those flies affected by this particular allele will result in the elongated/ narrow tube-like eye shape.
The br5 allele is known as a loss of function allele responsible for reducing the normal function of a fly’s gene. This