Monday, April 19, 2010
Mon-Day 1
Bio - The following objectives can be omitted from the hw; we will cover them on Tuesday and Wednesday:
#'s: 19,29,31,33,34
The answer to objective 30 is directly in the notes handed out today (use the three examples e.g. a plant without sunlight doesn't have its chlorophyll gene turned ON.)
#'s: 19,29,31,33,34
The answer to objective 30 is directly in the notes handed out today (use the three examples e.g. a plant without sunlight doesn't have its chlorophyll gene turned ON.)
We reviewed the various genetic diseases (there are hundreds of other faulty-allele caused genetic diseases) and looked at some of the Punnett square probabilities of passing on the disease from parent to offspring.
We could have added hemophilia, which is a sex-linked genetic disease.
We also discussed the effect of the environment (nurture) on genetic expression (nature).
We also discussed and showed examples of polygenic inheritance: when there is a large variety of a given trait e.g. eye color, you can infer that MANY different genes/alleles "add up" to cause the trait i.e. the effect of many different proteins are causing the trait.
AP Chem - we finished up the exam and then got right back into Ksp equilibria by looking at a problem in which we SELECTIVELY PRECIPITATE ONE of the TWO ions that are in solution. We do so by adding a VERY SMALL quantity of some SOLUBLE salt that contains an anion or cation that will precipitate out (due to insolubility) one of the two ions in solution; of course BOTH ions will precipitate out if too much of the new salt is added but we just add grain by grain or drop by drop from a solution of the new salt.
Check out Blackboard for today's final answer with respect to which of the two salts, AgCl or PbCl2 precipitated out first Also check out Blackboard for today's AP Chem exam question - now that we have a one day breather, we can do another one of those for practice.
We will FINISH Ksp equilibrium tomorrow.
We will FINISH Ksp equilibrium tomorrow.
# posted by C @ 9:52 AM 
