Post on 19-Dec-2015
Cell Cycle Review
What happens to the DNA at the beginning of prophase?
It condenses into chromosomes Unpaired sister chromatids
FIND YOUR SISTER
http://www.stanford.edu/group/pandegroup/folding/education/GAH/chromosomes.jpghttp://www.biotechnologyonline.gov.au/images/contentpages/chromosomes.jpg
http://www.sciencemuseum.org.uk/on-line/lifecycle/images/1-2-6-3-1-4-0-0-0-0-0.jpg
Chromosomes
http://www.cns.pdx.edu/~newmanl/chromosomeTid3.gif
Chromosomes Condensed chromosomes
without their sister chromatid
Sister chromatids joined by a centromere with their homolog
Find your partners by finding your homolog
http://faculty.ksu.edu.sa/tatiah/Pictures%20Library/normal%20male%20karyotyping.jpg http://www.mun.ca/biology/scarr/Karyotype_Denver_system.jpg
Engage
Eagle Zone- Pick up the pages from the front and begin working the first page (front and back) with your partner
Looking at Your Traits You and your groups will be looking at each other
to determine whether you are dominant or recessive for the following traits.
Eagle Zone Today we will explore the principles of
dominance and recessiveness. In order to do so, you must understand the following terms: Dominant, recessive, genotype, phenotype
Using your own explanation, give the meaning of these words (you should already have them defined from your HMWK page)
Principle of Dominance or Recessiveness
Traits found in humans
Tongue Rolling
Earlobes
Earbump Often called Darwin’s Ear Bump
Widow’s Peak
Hitchhiker’s Thumb
Polydactyly
Syndactyly Feet
Syndactyly Hands
Severe Syndactyly
Syndactyly Surgery
Cleft Chin
Clockwise Hair Whorl
Eagle Zone 1. Get out vocabulary homework and the
review from last week. Place it in the corner of your desk
2. Review for your quiz 10 minutes, then we will take the quiz
Explore/Explain Describing Your Traits
Using the information provided, determine your phenotype and genotype for the identified traits.
Use the information in the binders to help you answer the questions on the guided notes page
We will discuss the questions in groups of 4 and then as a class
Eagle Zone Come in and continue working on your
Bug Lab with your partner. You will have 20 minutes to complete the lab when the bell rings.
Elaborate Bugs, Bugs, Bugs
Genes for traits are encoded and arranged linearly on structures called chromosomes found in the nuclei of most cells. When organisms reproduce, the resulting offspring should receive an equal number of chromosomes from the mother and the father.
In this activity you use the chromosomes and Bug Traits Key to determine the genotype and phenotype of the offspring.
Genetically Inherited DiseasesAutosomal Dominant and Recessive Huntington Disease – Dominant Disease Cystic Fibrosis – Recessive Disease
Sickle Cell Anemia
Tay-Sach’s
PKU