Genetic Disorders and Karyotypes

In class today, we started off by getting two cookie monster stamps for the pedigree and genetic disorder problems.  We discussed how to analyze a pedigree chart to look at the inheritance of traits in families.  Remember, you need to look at the parents and the children of a given individual to try and determine the genotypes.  You cannot always determine the genotype with the information given.  For example, Question #3 on page 49... you cannot determine the genotypes of individuals E I J M N.

We then looked at a few images of karyotypes and talk about how to match chromosomes and analyze karyotypes.  Below is an image of a karyotype... do you know what genetic disorder this person has???

That's right!  Kleinfelters Syndrome!

Below are a few good links to practice analyzing Karyotypes.

http://www.biology.arizona.edu/human_bio/activities/karyotyping/karyotyping.html

http://learn.genetics.utah.edu/content/begin/traits/karyotype/

http://learn.genetics.utah.edu/content/begin/traits/predictdisorder/


For tomorrow:
1. QUIZ!
2. Complete UP 67-71
3. Look at online karyotyping links

Next Scribe is Celia