Traits to put on a Family Pedigree (simple dominant and recessive)

ATTACHED / UNATTACHED EARLOBES DOMINANT RECESSIVE

ROLLING YOUR TONGUE ROLLER NONROLLER DOMINANT RECESSIVE

WIDOW’S PEAK WIDOW’S PEAK STRAIGHT HAIRLINE DOMINANT RECESSIVE

HITCHHIKER’S THUMB DOMINANT RECESSIVE STRAIGHT THUMB

PINKIES BENT PINKIES STRAIGHT PINKIES DOMINANT RECESSIVE

CLEFT CHIN CLEFT NO CLEFT DOMINANT RECESSIVE

SECOND TOES LONGER SECOND TOE SHORTER SECOND TOE DOMINANT RECESSIVE

SIX FINGERS: POLYDACTYLY NUMBER OF FINGERS SIX FINGERS: POLYDACTYLY FIVE FINGERS DOMINANT!!!! RECESSIVE

Section 12.1 Summary – pages 309 - 314 A family tree traces a family name and various family members through successive generations. Through a family tree, you can identify the relationships among your cousins, aunts, uncles, grandparents, and great-grandparents. Section 12.1 Summary – pages 309 - 314

Section 12.1 Summary – pages 309 - 314 A pedigree is a family tree that traces an inherited trait. It is made up of a set of symbols that identify males and females, individuals affected by the trait being studied, and family relationships. Section 12.1 Summary – pages 309 - 314

Section 12.1 Summary – pages 309 - 314 Pedigree Symbols Ended Relationship Line Male Relationship Line Female Parent/Children Line Affected male Affected female Male carrier of a recessive trait Female carrier of a recessive trait Section 12.1 Summary – pages 309 - 314

The generations are identified in sequence by Roman numerals Each individual is given a number. It always begins back at #1 for each generation, moving left to right.

Websites on dominant and rec. traits. http://www.blinn.edu/socialscience/LDThomas/Feldman/Handouts/0203hand.htm http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim http://www.highlands.edu/academics/divisions/socialcultural/psych/johnson/hnd-domrec.htm Pick one: Attached/Free Ear lobes, Hitch-hiker’s thumb, cleft chin, dimples, Curling tongue, Widow’s Peak, Longer second toe, nearsighted (rec), farsighted (dom.), double jointedness (dom.), right (dom.) or left (rec.) handedness, freckles….. ***If there is another trait that runs in your family and you would like to use that for your project, please make sure to get it approved before beginning the project.