How many copies of a protein need to be present in a cell in order for it to be visible as a band on an SDS gel? Assume that you can load 100 ?g of cell extract onto a gel and that you can detect 10 ng in a single […]

Three Questions: The uniform arrangement of the backbone carbonyl oxygens and amide nitrogens in an ? helix gives the helix a net dipole, so that it carries a partial positive charge at the amino end and a partial negative charge at the carboxyl end. Where would you expect the ends of […]

In snapdragons, red flower color (R) is incompletely dominant over white flower color (r); the heterozygotes produce pink flowers. A red snapdragon is crossed with a white snapdragon, and the F1 are intercrossed to produce the F2. (a) Give the genotypes and phenotypes of the F1 and F2, along with […]

Q1. How much green, headless shrimp must you purchase so as to have 35 lb. of cooked, peeled, de-veined shrimp for the party? You know how to figure that the peeling and cooking losses of green shrimp are 37 percent. Q2. A man and a woman are both carriers for […]