Uncategorized

Two Questions: What, if anything, is wrong with the following statement: “When NaCl is dissolved in water, the water molecules closest to the ions will tend to orient themselves so that their oxygen atoms point toward the sodium ions and away from the chloride ions.”  The drug thalidomide was once prescribed […]

Question: Prions are “infectious” proteins that will alter the structure of wild type proteins and turn them prionic. The protein degradation pathway involving the Proteasome works because this complex recognizes proteins tagged with Ubiquitin. Ubiquitin has to be added to a Leucine amino acid within the protein. Explain why this mechanism […]

Question: The ability of urea diffusing across membranes of red blood cells … I was told that urea can easily penetrate the membrane as they are not present in high concentration inside the cell. If I am mistaken, isn’t urea a large polar molecule? I thought they would be impermeable to […]

Please answer the following questions, you may answer on this sheet or your own paper. 1. How does a theory differ from a hypothesis? 2. Mendel’s laws are illustrated using Punnett squares. In the example below, we are looking at possible alleles for facial dimples where the capital T indicates […]