2/24-3/2

• 2/24:  Go over how to write a genetic cross.  Work time on 3.4 Questions.  Check off those problems.  Genetics Disorder Assignment.  Go to University of Utah genetic disorder site and have each group member look up a different disorder.  You need to research at least 1 single gene disorder, 1 chromosomal abnormality, and 1 multifactor disorder in your group.   In your notes, write:  type of genetic disorder, frequency, symptoms, treatments, and interesting facts.  Then pick one of the disorders to make an informational poster to put up in the room.  (We will get to this part next week).
• 2/28:  Most of you are taking the ACT, but in part of 3rd period and all of 4th, we will make the disease posters, discuss pedigrees and sex-linked disorders, and do Pedigree Worksheet.  I will also hand out Genetics Problems for students to start working on.  Begin by doing 1,4,5,7-11, 13,14,16-18.  We will do 2,3,6, and 15 next week.
• 3/2:  Genetic disease posters for 1st and 3rd periods and work on pedigree and genetics problems.  4th period will work on genetics problems and watch the video:  "Ghost in your genes" about epigenetics.  Please read 10.2 in the book.

3.4 Inheritance Questions to be done after the Quiz on Wednesday 2/22

Please Answer the Following Questions in your Notebook:

1.  Describe how Mendel's experiments helped to develop modern principles of inheritance.
2.  Describe the importance of Mendel's use of quantitative data in his experiments.
3.  What does it mean to say that alleles segregate?
4.  Outline the principles of dominant, recessive, and co-dominant alleles.
5.  Show how to make a Punnett grid, using a labeled diagram.
6.   Do the DBQ's on pp. 173-174 (mice and "ladybirds")
7.  Read about the ABO blood groups on pp. 174-175 and summarize how they work.  This might be long!
8.  Do the DBQ on pp. 176-177.

If you get done with this, continue to read from 177 and on.  We will continue in class with causes of genetic diseases, types of diseases, sex-linked genes, and pedigree charts.

What's On the Genes, Chromosomes, and Meiosis Quiz to be Taken Next Wednesday, 2/22??

1. Review the questions that we did for 3.1 and 3.2
2. Be able to outline the process of meiosis (8 stages) and be able to identify pictures of stages
3. Be able to outline and draw the process of crossing over (at least 3 stages)
4. Be able to outline the process of nondisjunction and possible chromosomal differences resulting
5. Be able to briefly outline 2 different methods of obtaining cells for karyotyping (amniocentesis and chorionic villus sampling-cvs)

Welcome to IB Biology 2nd Semester!

• Tuesday 2/7:  Final Exams back to look at and then recollect.  A little bit on genes.  Bookwork on sections 3.1 and 3.2.  See post below for questions.  Do them in your notebook for check off at the beginning of class on Monday 2/13.
• Thurs 2/9:  Review concepts from 3.1.  Continue working on 3.2 questions.  When finished pick either the GenBank on-line activity from 3.1 or the OMIM on-line activity from 3.2.  Read 3.3 for homework.
• Mon 2/13:  Check off 3.1 and 3.2 bookwork and go over.  Process of Meiosis.  Read 10.1.
• Wed 2/15:   Discuss independent assortment and crossing over.  Start Creature Activity.
• Fri 2/17:  Complete Creature Activity and review for Genes and Meiosis Quiz to be taken next Wed 2/22.

3.1 and 3.2 Work

In the past, we have not formally gone over these sections, but I found that some students were at a disadvantage from not going over these concepts.  Please answer the following questions in your notebook and they will be checked off on Monday 2/13.

1. This is in 3.1. What is a gene?
2. Where are genes located?  Draw a diagram to help explain.
3. Look at the chart on p. 142 that compares numbers of genes in different species.  Which species has the most genes?  The least?  How many genes do humans have?
4. Discuss the above information.  Is it surprising?  Why don't humans have more genes than other organisms?
5. What are alleles?  Describe the differences between different alleles.  Where do these differences come from?
6. Do the DBQ on p. 145.
7. Read the section on sickle cell anemia and outline the genetic change that causes sickle cell and what it does to the blood cells and health of people suffering from sickle cell.
8. What is a genome?
9. Describe the carrying out and results of the Human Genome Project.
10. Now we're in 3.2.  Describe the bacterial chromosome.
11. What is a plasmid and where can it be found?  Are they replicated like the main bacterial chromosome?  Explain.
12. Describe the autoradiography technique used to measure DNA molecules.
13. Describe eukaryote chromosomes.
14. What are homologous chromosomes and where do they come from?
15. Do the DBQ on p. 153.
16. Look at the chart on p. 154 comparing genome size.  How is this comparison different from one that you looked at on p. 142?  Is it showing the same thing?  Are the results similar?
17. What is the difference between a haploid nucleus and a diploid nucleus?  Use humans as an example.
18. Explain why different species have different numbers of chromosomes.
19. Do the DBQ on p. 156.
20. What is the difference between an autosome and a sex chromosome?  How many autosomes do humans have?  How many sex chromosomes?
21. Discuss how the sex chromosomes determine sex in humans.
22. What is a karyogram?
23. How can karyograms be used to determine sex and diagnose chromosomal disorders in humans?
24. Do the DBQ on p. 159.

Semester Grades

Hello Students!

I hope you all stay safe today in the ice!  As many of you have noticed, I entered the final exam scores last night.  I have not entered extra credit yet and I can really only add that to the finalized grade, so you need to hang tight!  You can tell how much extra credit you are getting by looking at your SPARK lectures and book reviews in turnitin.com.  I probably won't get around to finalizing grades until Sunday or Monday (they are due Tuesday).  I still have a lot of work to do for my 2nd year students.  Please try to relax and enjoy your week-end!

Ms. Kenny