1. November 12, 2009 Mrs. Bracken Please Begin Your Daily “Mind Matters” BIOLOGY

2. Thursday – November 12, 2009 “ IN ” A pea plant with the genotype TtWW is crossed with a pea plant with the genotype ttWw. How many different genotypes can be expressed in the offspring? F. 1 F. 1 G. 2 G. 2 H. 3 H. 3 I. 4 I. 4 Objective : All living things have pedigrees. Following information given about pedigrees along with an understanding of inheritance, students will be able to determine the genotypes of individuals through an interactive group activity about solving a family’s questions on their own pedigree. “ OUT ” Homework : Begin research on your T-3

3. What we will do today Human Genetics Note-taking Human Genetics Note-taking Pedigree Chart Activity Pedigree Chart Activity Family Puzzles Family Puzzles

4. Human Genetics TEKS 6D, 6F

5. DO NOT WRITE THIS – REVIEW!! Topic: Sex Chromosomes What are sex chromosomes? How can we tell what is male and what is female? Information: Page: 341-343 Sex chromosomes determine the sex of the offspring; chromosomes not determining sex are autosomes The sex chromosomes are X and Y; XX results in female; XY results in male.

6. Sex Chromosomes v Autosomes Topic: Sex Chromosomes How are genes on sex chromosomes different than genes on autosomes? Information: Page: 341-343 Genes located on sex chromosomes are sex-linked genes and are thus specific to the male or female offspring specific to that allele.

7. Pedigrees 10 Minutes

8. PedigreesTopic:Pedigrees What are pedigrees and how are they related to sex linked genes? Information: Page: 350 Pedigrees are used to trace the history of genetic traits in a family. Pedigrees can predict if a specific sex (gender) is more likely to obtain a trait or pass on a trait to future generations.

9. Pedigree Example

10. Pedigree Chart Activity

11. Today’s Vocabulary Sex Chromosomes Sex Chromosomes XX, XY XX, XY Genes Genes Traits Traits Pedigree Pedigree

12. Thursday – November 12, 2009 “ OUT ” What’s Next: Next Week begins our new Six Weeks – LAST SIX WEEKS IN THE SEMESTER!! Homework : Begin research on your T-3