Monday, April 16, 2012
Mon-Day 2 Welcome Back!
AP Chem - we did a graphical type of Hess Law calculation showing two very different pathways for a formation reaction. The overall key to this is that any one of the delta H values from one step of any pathway can be solved for if all of the other delta H values are known. This can be of great economic or practical importance if there are no simple experimental means of measuring/obtaining a particular delta H value.
Formal AP Chem exam review sessions begin this week. We will discuss each week's schedule so that you can maximize your study time with them.
Formal AP Chem exam review sessions begin this week. We will discuss each week's schedule so that you can maximize your study time with them.
Bio - we discussed "sex-linked traits", which are traits caused by alleles that are located exclusively on the X - sex chromosome. Males have one X and one Y sex chromosome, whereas females have two X chromosomes - a matching homologous pair. Because the Y chromosome is shorter i.e. is made up of fewer nucleotides, has fewer genes/alleles than its homologous X partner, we saw that this can lead to a disproportionate percentage of sex linked characteristics from recessive alleles showing up in the male offspring.
# posted by C @ 4:02 PM 
