1. HUMAN TRAITS

3. PEDIGREE * CHART OF RELATIONSHIPS WITH A FAMILY; DETERMINES GENOTYPES OF TRAITS OF MEMBERS

4. http://projects.cbe.ab.ca/Diefenbaker/Biology/Bio%20Website%20Final/notes/classical/Image18.gif

5. http://fig.cox.miami.edu/~cmallery/150/mendel/sf17x3.jpg

8. Autosomal Recessive Diseases Inheritance when 2 parents who share a recessive gene for a disease pass this gene to an offspring. Usually, parents are heterozygous for this trait & are unaware of their potential for passing on this disease. Examples: Tay-Sachs Disease, Albinism, Cystic Fibrosis, PKU http://bioinf.may.ie/degree/lectures/first/i2_2.gif

9. RECESSIVE ALLELE DISORDERS 1. ALBINISM (aa) = NO SKIN PIGMENT

10. 2. CYSTIC FIBROSIS – EXCESS LUNG MUCUS

11. 3. PKU –HIGH PHENYLALANINE (AMINO ACID) IN TISSUES. http://depts.washington.edu/pku/images/food_bullseye.jpg

12. 4. TAY-SACHS – HIGH LIPIDS IN BRAIN

13. AUTOSOMAL DOMINANT DISORDERS *the inheritance of a single copy of a defective gene that “over-rides” normal gene !

14. 1. HUNTINGTON’S DISEASE – NEUROLOGICAL http://www.about-dementia.com/articles/images/HuntingtonsPedigree.gif

15. CO-DOMINANT DISORDERS 1. SICKLE-CELL DISORDER – RED BLOOD CELLS