I've posted a note under class notes that you will want to have for Monday's class. It's called Sex Linked Inheritance and it is the last topic we will cover before next week's test. I've moved the test to Thursday in order to allow for a little more review time.

On Tuesday and Wednesday we have been working on monohybrid and dihybrid crosses. Be sure to seek extra help on these if you find them difficult.

Today we started the second half of the genetics unit....Mendelian Patterns of Inheritance. We discussed the history of the evolution of the science of genetics, with an emphasis on Gregor Mendel's role. Students wrote out definitions to some of the new terms related to genetics. We then watched an episode of "Cracking the Code".

Today we took up the Karyotyping gizmo questions. Students were given a review for tomorrow's test which is on mitosis, meiosis, chromosomes and DNA. Here are the answers to the review.
Test review with answers.

Today we finished discussing the Errors in Meiosis note by covering human chromosomal abnormalities and polyploidy. Note, the questions assigned for homework at the bottom of that class note have been done already in an earlier section...disregard them.
The students then completed the gizmo on Human Karyotypes at www.explorelearning.com
Absent students can get a username and password for this from me tomorrow and complete the activity at home.

Please go to www.explorelearning.com and login using your username and password provided in class. Select the Karyotyping Gizmo and complete the activity sheets.

On Thursday, students played with play-doh......they created chromosomes out of play-doh, modeled crossing over and how the chromosomes are changed through the stages of meiosis. They were also given a worksheet to fill out on the stages of meiosis and a comparison of mitosis to meiosis. This is homework if not finished please. Also, bring your diversity test to class tomorrow as we will take it up then.

Some meiosis animations...

http://www.cellsalive.com/meiosis.htm

http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter28/animation__how_meiosis_works.html
For review at home, here is the animation we watched together:

http://www.sumanasinc.com/webcontent/animations/content/meiosis.html

The class finished working on the mitosis lab. If you didn't get all the questions done in class, please finish them for homework tonight. We will begin meiosis tomorrow.