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drosophila melanogaster genetics experiment

Drosophila melanogaster is a species of fly (the taxonomic order Diptera) in the family tuaraftars.gq species is known generally as the common fruit fly (though inaccurately) or vinegar tuaraftars.gqng with Charles W. Woodworth's proposal of the use of this species as a model organism, D. melanogaster continues to be widely used for biological research in genetics, physiology, microbial Family: Drosophilidae. Apr 21,  · Genetics of Drosophila melanogaster Introduction: Gregor Mendel revolutionized the study of genetics. By studying genetic inheritance in pea plants, Gregor Mendel established two basic laws of that serve as the cornerstones of modern genetics: Mendel’s Law of Segregation and Law of Independent Assortment. Mendel’s Law of Segregation says that each trait has two . Oct 04,  · lab report drosophila melanogaster 1. tbg genetics name: siti sarah bt mohd saifuddin d ameera bt yahya d nurul husna bt alias d practical: 2 (simple mendelian genetics in drosophila melanogaster) date: 2 august lecturer’s name: en.


LAB REPORT DROSOPHILA MELANOGASTER


Introduction: Gregor Mendel revolutionized the study of genetics. These alleles are a source of genetic variability among offspring, drosophila melanogaster genetics experiment. This also helps ensure genetic variability among offspring. For example, if two genes are on the same chromosome, the assortment of their drosophila melanogaster genetics experiment will not be independent.

Also, for genes found on the X chromosome, expression of the trait can be linked to the sex of the offspring. Drosophila melanogaster, the common fruit fly, has been used for genetic experiments since T. Morgan started his experiments in Drosophila make good genetic specimens because they are small, produce many offspring, have easily discernable mutations, have only four pairs of chromosomes, and complete their entire life cycle in about 12 days.

Drosophila melanogaster genetics experiment also have very simple food requirements. Chromosomes 1 the X chromosome2, and 3 are very large, and the Y chromosome — number 4 — is extremely small. These four chromosomes have thousands of genes, drosophila melanogaster genetics experiment, many of which can be found in most eukaryotes, including humans.

Drosophila embryos develop in the egg membrane. The egg hatches and produces a larva drosophila melanogaster genetics experiment feeds by burrowing through the medium. The larval period consists of three stages, or instars, the end of each stage marked by a molt. Near the end of the larval period, the third instar will crawl up the side of the vial, attach themselves to a dry surface, and form a pupae. After a while the adults emerge. Differences in body features help distinguish between male and female flies.

Females are slightly larger and have a light-colored, pointed abdomen. The abdomen of males will be dark and blunt. The male flies also have dark bristles, sex combs, on the upper portion of the forelegs. Hypothesis: After performing a dihybrid cross between males with normal wings and sepia eyes and females with vestigial wings and red eyes, we expect to see only hybrids with normal wings and red eyes in the first filial generation. Then we expect to observe a ratio of phenotypes in the second filial generation.

A vial of wild-type Drosophila was thermally immobilized and the flies were placed in a petri dish. Traits were observed. A vial of prepared Drosophila was immobilized and then observed under a dissecting microscope. Males and females were separated and mutations were observed and recorded. The parental generation was placed in the morgue. The vial was placed in an incubator to allow the F1 generation to mature. The F1 generation was immobilized and examined under a dissecting microscope.

The sex and mutations of each fly were recorded. Five mating pairs of the F1 generation were placed into a fresh culture vial, and the vial was placed in an incubator, drosophila melanogaster genetics experiment. The remaining F1 flies were placed in the morgue. The F1 flies were left in the vial for about a week to mate and lay eggs.

Then the adults were removed and placed in the morgue. The vial was placed back in the incubator to allow the F2 generation to mature.

The F2 generation was immobilized and examined under a dissecting microscope. Discussion and Conclusion: The results of our parental cross turned out just as expected, but our F2 generation was not normal. Some sort of mutation must have occurred that caused the strange drosophila melanogaster genetics experiment shape seen in several individuals of our F2 generation.

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Drosophila melanogaster - Wikipedia

 

drosophila melanogaster genetics experiment

 

Apr 21,  · Genetics of Drosophila melanogaster Introduction: Gregor Mendel revolutionized the study of genetics. By studying genetic inheritance in pea plants, Gregor Mendel established two basic laws of that serve as the cornerstones of modern genetics: Mendel’s Law of Segregation and Law of Independent Assortment. Mendel’s Law of Segregation says that each trait has two . Oct 04,  · lab report drosophila melanogaster 1. tbg genetics name: siti sarah bt mohd saifuddin d ameera bt yahya d nurul husna bt alias d practical: 2 (simple mendelian genetics in drosophila melanogaster) date: 2 august lecturer’s name: en. Drosophila melanogaster is a species of fly (the taxonomic order Diptera) in the family tuaraftars.gq species is known generally as the common fruit fly (though inaccurately) or vinegar tuaraftars.gqng with Charles W. Woodworth's proposal of the use of this species as a model organism, D. melanogaster continues to be widely used for biological research in genetics, physiology, microbial Family: Drosophilidae.