HOMEWORK DUE MONDAY 11/18
PEDIGREE CHARTS
AIMS: SWBAT use a ___________________ to show ________________________.
PEDIGREE CHARTS
DNA is passed from parents to children – you have ___________ of your mother’s DNA, and
____________ of your father’s DNA. ________________________________ are a scientific tool used
to _______________ traits through families.
Pedigree Chart Key
– ____________________________________________
– ____________________________________________
– ______________________________________
– ____________________________________
– ________________________________________
or
– ________________________________________
or
– ________________________________________
Everyone must demonstrate 80% or higher mastery on Punnett Squares and Pedigrees
HOMEWORK DUE MONDAY 11/18
Mr. Unger’s Family
1. How can you tell if two adults are married on a pedigree chart?
___________________________________________________________________________________
___________________________________________________________________________________
2. How can you tell if the couple who is married had children?
___________________________________________________________________________________
___________________________________________________________________________________
3. What is the difference between a shaded and an unshaded shape?
___________________________________________________________________________________
___________________________________________________________________________________
3. What is the difference between squares and circles?
___________________________________________________________________________________
___________________________________________________________________________________
Everyone must demonstrate 80% or higher mastery on Punnett Squares and Pedigrees
HOMEWORK DUE MONDAY 11/18
Reading Pedigree charts
Use the chart on the left to answer the following questions:
1) How many children do Desiree and Ken have? ___________________
2) How many boys and how many girls? __________________________
___________________________________________________________
Brown Eyes
Blue Eyes
3) What’s special about the girls? ________________________________
___________________________________________________________
4) Which children have blue eyes? _______________________________________________________
___________________________________________________________________________________
5) If one of the girls had blue eyes would the twins be identical or fraternal? _____________________
___________________________________________________________________________________
1) How many children do Frank and Yvette
have? What are their names?
________________________________________________________________________
________________________________________________________________________
n
2) Who did their children marry?
____________________________________
____________________________________
3) How many grandchildren do they have? _______________________________________________
Everyone must demonstrate 80% or higher mastery on Punnett Squares and Pedigrees
HOMEWORK DUE MONDAY 11/18
4) How many of their grandchildren are boys? How many are girls? ___________________________
___________________________________________________________________________________
5) Which members of Frank and Yvette’s family have asthma? ________________________________
___________________________________________________________________________________
6) Which members don’t? _____________________________________________________________
___________________________________________________________________________________
7) Whose asthma is inherited from Yvette, Jack or Susan’s? How can you tell?
___________________________________________________________________________________
___________________________________________________________________________________
8) Where does Carol get her asthma from? How can you tell?
___________________________________________________________________________________
___________________________________________________________________________________
9) What percent of their family has asthma?
Show your work on the right:
Creating Pedigree charts
Draw a pedigree chart for each problem. Make sure to include a key and each person’s name.
1. Chad and Veronica got married and had Brittany, Kristin, and Harry. It was discovered that Harry
had sickle cell anemia. Brittany married Larry and had Stephan and Stephanie. Stephan also had sickle
cell anemia. Larry’s brother Barry also had sickle cell anemia but neither of their parents had the
disorder.
Everyone must demonstrate 80% or higher mastery on Punnett Squares and Pedigrees
HOMEWORK DUE MONDAY 11/18
Everyone must demonstrate 80% or higher mastery on Punnett Squares and Pedigrees