Biology Commons^™

The Nature Of Genes Expressed Differently After Environmental Drug Exposure, Nicci Siffel

Scholars Week

The Nature of Genes Expressed Differently after Environmental Drug Exposure

N. Siffel, S. Anderson, B. Subedi, D.R. Hammond-Weinberger

Drug use, of prescription or illicit varieties, alter bodily functions in different ways, especially in the nervous system. These drugs are found in sources of drinking water because they are not removed by wastewater treatment facilities. To investigate the effects of these drugs as they appear in mixtures, we exposed groups of zebrafish embryos to cocktails of drugs and screened for genes that were differentially expressed between the experimental and control groups and could thus give more insight into their biological functions. …

158— Optimization And Development Of The Luria-Delbrück Experiment For Geneseo Genetics Labs, Abigail Scheffler

GREAT Day Posters

The classic genetics experiment by Salvador Luria and Max Delbruck showed that mutations are present prior to selection rather than arising in response to selective pressures. In this experiment, we used Escherichia coli as our model organism and the antibiotics streptomycin and rifampicin to show students in a laboratory setting how this hypothesis can be applied. Specifically, we optimized antibiotic concentrations and the amount of bacterial cells to use in order for the activity to run smoothly and consistently in a student laboratory. We found that the ideal conditions are 1000 cells/ml and 25 micrograms/ml of streptomycin. These concentrations showed …

Biol 250: Curly Hair Trait: Homozygous Or Heterozygous, Kaysi Bing

2020 Virtual Spring Student Showcase for Research and Creative Inquiry

Research Aim: To connect the SNP rs17646946 AG genotype and curly hair

Hypothesis: People expressing a GG genotype at the SNP rs17646946 are most likely to have the curly hair trait