Name ___________________________________
Pedigree Quiz
What is a pedigree? ________________________________________________________
A Square within a pedigree represents what? ________________________________
2. A circle within a pedigree represents what? ___________________________________’
3. The horizontal line between individuals 1 and individual 2 from generation I is known as
what?
_______________________________________
4. The horizontal line that connects individuals 1, 2, and 3 for generation II is known as what?
________________________________________
5. Which genetic mutation creates mucus in the lungs and makes it hard to breathe? Circle one
Sickle cell
Down syndrome
Hemophilia
Cystic fibrosis
6. The incomplete and or delayed formation of blood clots is caused by which genetic mutation?
Down syndrome
Sickle cell
Cystic fibrosis
Hemophilia
7. If a square or circle within a pedigree is shaded this indicates what?
____________________________________________________________________________
8. If a square or circle within a pedigree is NOT shaded this indicates what?
____________________________________________________________________________
9. If a circle of square on a pedigree is half-shaded this indicates that this person is what?
Has the trait
Does not have the trait
Carrier of the trait
10. Is this pedigree chart…… Dominant or Recessive ? __________________________
11. Is this pedigree chart…… Dominant or Recessive?
_________________________
12. On the pedigree above, what is the relationship between individual 2 from generation I and
individual 3 from generation II? _________________________________________
13. On the pedigree above, what is the relationship between individual 3 and 4 from generation
II? ___________________________________
14. Which genetic mutation causes your red blood cells to look like a sickle? _______________