What's On the Meiosis and Genes Short Test on Thursday, February 13?

• Be able to describe all the phases of meiosis, in particular, make sure you understand the difference between Meiosis I and Meiosis II
• Be able to identify phases of meiosis in simple diagrams or pictures
• Be able to draw and label the stages of crossing over making clear the before, during, and after.  I recommend 4 stages as they showed in the book in 10.1.  Be able to distinguish between homologous chromosomes, sister chromatids, and nonsister chromatids.
• Be able to describe the significance of independent assortment and how it adds to the variety of gametes.
• Basic vocabulary involving genes and chromosomes.  In addition you should be able to distinguish between genes, chromosomes, and genomes
• Be able to describe how nondisjunction occurs and be able to describe two disorders caused by nondisjunction
• Be able to discuss the 2 methods of obtaining fetal cells for karyograms, including how they are done, benefits, and risks.