Uncategorized

Describe a well-controlled experiment to determine if the rise in internal free calcium observed in the cytoplasm of unfertilized sea urchin eggs in the presence of A23187 is due to in flux of calcium from seawater. Include experimental treatments, controls, and briefly describe experimental methods. Note: As mentioned in the […]

Problem 1: The Schlogl Model This model is famous for its bistable steady-state distribution. The reactions are              c1B1 + 2X ? 3X,             c2     c3B2 ? X,     c4 where B1 and B2 denote buffered species whose respective molecular populations N1 and N2 are assumed to remain essentially constant over the […]

There are many genes in cat that affect the color and pattern of their coat. The stripes are due to a gene in which thedominant (B) produces black stripes and b produces brownstripes. The stripes are further influenced by a dilution gene inwhich the dominant (D) produces full color and […]

Describe the growth of a highly branched, large oak tree from an embryo within an acorn. (Note that the cotyledons in an oak seedling remain belowground when an oak seedling germinates.) Emphasize which meristems are involved in the oak’s development at different points in time, where these meristems are located, […]