Question: Assume you have 2 tubes containing cultures of genetically distinct bacterial strains. You know that when you mix the two together, you get Horizontal gene transfer (HGT), but you do not know what genetic exchange mechanism is accomplishing this transfer. Prior to mixing the strains, you add an enzyme that […]

1. What does it mean to say that the Soil Taxonomy is a generic system of classification? 2. Describe and explain the soil horizon development of Entisols. 3. In which kind of climate are Gelisols typically found? 4. In what kind of environment are Aridisols typically found? 5. What is […]

1. a. A standard solution of a protein containing 0.400 mg/ml had an absorbance of 0.312 at 280 nm. The pathlength of the cuvette is 1 cm (b= 1 cm). Calculate the extinction coefficient (mg-1 * cm-1 * mL) of the standard protein and write your final answer in the […]

Once two populations of a species have become allopatric with some barrier preventing gene flow between them, the two populations are free to diverge genetically. One mechanism for divergence that is thought to result in rapid divergence is sexual selection. a. Why is sexual selection likely to result in more […]