Genetics Unit

• Tues 2/18:  Notes on basic genetics, how to do a monohybrid cross with simple dominance and co-dominance.  ABO blood group crosses.  Dihybrid crosses and the multiplication rule.  Work on the Old Book Genetics Problems (you can skip #6 for now).  Do problems on separate paper that you can turn in.  Show work and/or explain reasoning.  Work can include Punnett grids, diagrams, and showing mathematical work.  Read 3.4 if not already.
• Thurs 2/20:  Go over some of the genetics problems and introduce pedigrees.  Sex-linked genes.   More work time on genetics problems, to be turned in on Monday 2/24.  Hand out pedigree worksheet.  Start reading 10.2.
• Mon 2/24:  Turn in genetics problems.  Check off pedigree worksheet.  Notes on causes of genetic diseases and some common single gene disorders.  Polygenic inheritance.  Genetics of Race Video.  Research a single-gene disorder, including where on the chromosomes it occurs, what it does to impact the body, symptoms, treatments, outcomes, interesting facts, etc.  
• Wed 2/26:  Notes on linked genes, recombinants, calculating frequencies of recombination, and a little bit on gene mapping.  Introduce chi-squared.  Some DBQs to be done in your notebook:  pp. 452-453 and p. 454 (chi-squared).
• Fri 2/28:  Chi-squared and flower activity.  Answer questions in pairs and get checked off..  Read 10.2 if not already.  Review for Genetics Test to be taken next Friday 3/6.
• Tues 3/3:  Counselors will be here to do a 30 minute presentation.  Play Kahoot Review for Genetics Test.
• Wed 3/4:  SAT Testing Day.  There will be a Full 8 schedule for those not taking the test.
• Friday 3/6:  Genetics Test.  Start replication.  Read the first part of 2.7 and 7.1.

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.