Uncategorized

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 […]

1. Give a brief description of each of the following:a.heritable mutationb.nutritional mutationc.conditional mutation 2. a.Write a wild-type DNA sequence with 10 bases and under it write the sequence after a transversion and a transition has occurred. Underline and label both mutations. b.Write a DNA sequence of 10 bases, and show […]

1. In the mid-seventeenth century, Dutch scientist Jan Baptista van Helmont struggled to understand where plants get the material that allows them to grow larger. He planted a willow tree of a given weight in a ?xed quantity of soil and then, ?ve years later, weighed both the willow and […]