Biology Lab #10 - Fruit flies

Biology Lab #10 - Fruit flies - Benny Wong Monday Biology...

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Benny Wong 11/30/09 Monday Biology Lab #10 Mendelian Genetics: Drosophilia Purpose In this lab, Drosophila melanogaster , fruit flies were studied. The reason why fruit flies were used in the study of genetics is because they have a very low chromosome number. Their haploid number is 4 and the 2,3, and 4 chromosomes are the same in both sexes and are known as autosomes. The genetic content of the flies are made up of mostly X,2, and 3 chromosomes. The first experiment conducted on the fruit flies was to test for the presence of the enzyme aldehyde oxidase (AO). The spot assay was to test for the aldox gene that controls AO activity. The wild types were examined with the mutant strains in order to determine whether or not sex differences affected the presence of the gene. In the third experiment, spot assays were done on the F 1 progeny to see whether or not there was AO activity. The purpose of this experiment is to determine the genotypes of the parents. The sex of the fruit flies does not matter because these are the offspring of
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This note was uploaded on 02/16/2011 for the course BIO 101 taught by Professor Kaplan during the Spring '11 term at CUNY City.

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Biology Lab #10 - Fruit flies - Benny Wong Monday Biology...

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