Q1. Atoms can be represented by simply listing the number of protons, neutrons, and electrons-for example, 2 p+; 2 n0; 2 e- for helium. Which atom represents the 18O isotope of oxygen? Q2. What do these error messages and warning tell you about how closely Virtual Unknown Microbiology mimics nature […]

Q1. The drug Celebrex selectively inhibits PTGS2 even as aspirin and other non-steroidal anti-inflammatory drugs (NSAID’s) inhibit both PTGS1 and PTGS2 in the same way. Why do you think researchers wanted to find out a selective inhibitor to PTGS2? Q2. If a beetroot cylinder was placed in a test tube […]

Question 1. DNA replication is semiconservative. Which does this mean? Each new DNA double helix consists of two old strands. Each new DNA double helix consists of one old strand and one new strand. Each new DNA double helix contains 25% of the old DNA double helix. Each new DNA […]

Question: Experts estimate that human activities have caused the extinction of thousands of species annually; whereas, the natural rate of extinction is thought to be a few species per year. You have been asked to testify at a hearing in favor of providing additional funding to protect endangered species. What arguments […]