The following table shows U.S. first-class stamp prices (per ounce) over time. a. Construct a step function describing stamp prices for 20062010. b. Graph the function. Be sure to specify whether each of the endpoints is included or excluded. c. In 2008 the post office created forever stamps that (if you bought them then, at 42 cents) would always be valid. How would this alter the graph if you used only forever stamps?
Cell Biology on April 18, 20, 22, 2016 (All images taken from Professor Hennessey’s slide—edited by ChiWai Fan) Summary of Mitosis and Meiosis Mitosis produces daughter cells with the same genotype as the mother cell No genetic segregation or independent assortment in mitosis Meiosis produces cells with different mixtures of maternal and paternal genes because of: Independent assortment Genetic recombination Independent assortment and recombination happen in meiosis, not mitosis The point Goal of Mitosis: Faithful division of DNA so the daughter cells are genetically identical to the mother cell. Keep it real, keep it diploid, and keep it 100%. Goal of Meiosis: Mix it up. Produce haploid game