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Q1. For one of the monohybrid crosses you performed in this Investigation of the heterozygous fly and a homozygous fly, describe how to use the phenotype ratios to determine the percentage of offspring displaying each trait. Q2. If a single, diploid G2 nucleus in an ascus contains 400 nanograms (ng) […]

Water samples were taken from a farm pond in Hanover, Kansas and analyzed for fecal coliform bacteria. 0.1 mL of water sample was initially pipetted into a 9.9 mL diluent. After mixing, 0.1 mL was removed and pipetted into another 9.9 mL diluent. 0.5 mL was then plated onto an […]

Vancomycinis an antibiotic that has become critical for controlling penicillin-resistant bacteria. This large glycopeptide (molecularwt. = 1449) binds to cellwall precursors and interferes with peptidoglycansynthesis. The polymyxinsare a group of antibiotics that are particularly effective as atopical antibiotic against skin infections. These largepolypeptides (molecular wt. = 1202) can disrupt some […]

Question: The plot of novelist Rose Darkly’s current work in progress, Despair at the Heat Death Cafe, revolves around the production of the “energy currency” of the cells of an alien species. Rather than have her aliens’ cells use ATP as the compound that links catabolism and anabolism, Ms. Darkly wants […]