Girls Rule and Boys Drool; Well Maybe?

So I'm a Girl Power! advocate, especially in science.  Women have made huge contributions to modern society, which may go unrecognized.  I want your opinion did girls rule, and boys drool or were boys the true kings of scientific discover? 

Support your opinion by describing each classical experiment and indicate how it provided evidence for the chemical nature of the gene.

1. Hershey and Chase- bacteriophage replication
2. Griffith and Avery, MacLeod and McCarty- bacterial transformation
3. Meselson and Stahl- DNA replication in bacteria
4. Wilkins and Franklin-X-ray crystallography

Pleiotropic vs Polygenic Inheritance

Pleiotropy occurs when a single gene affects multiple phenotypes.  a)Find a human pleiotropic gene and explain why that gene is a pleiotropic gene.  **be careful not to find a disease which simply has alot of side effects b) In 50 words compare Pleiotropy and Polygenic Inheritence.

Degree of Dominance

As you have learned in Chapter 14 there are "Degrees of Dominance" these concepts include Incomplete Dominance, Complete Dominance, and Codominance.  Find a characteristic that represents each degree of dominance and post a picture representing each phenotype for those characteristics ( one picture and explanation per characteristic)

You cannot repeat a characteristic once it has been used.

For example:
Incomplete dominance
Sickle cell anemia in this genetic disorder, both alleles must be normal/dominant in order for the offspring to exhibit the wild type genotype.  Individual who are homozygous recessive fail to make the proper structural hemoglobin required to carry oxygen within the RBC, individuals who are heterozygous make both sickle shaped RBCs and wild type RBCs, but the sickle shaped RBCs have little effect because they are out numbered by the wild type RBCs.

Mutations

Do positive mutations really exist? Yes or No; provide proof.  75 word minimum-Post due by 2/21/10 by the beginning of class.

Turner Syndrome

http://www.nlm.nih.gov/medlineplus/ency/article/000379.htm

After reading the information, provided in the above link, answer the following questions:
a) Explain how it is genetically possible (in terms of mitosis and meiosis) for a fertilized egg to have 45 chromosomes.
b) In the case of Turner Syndrome are the autosomal chromosomes affected? Explain your answer
c) Explain how a karyote could inform a pregnant mother as to whether or not her unborn child has Turner Syndrome