| A | B |
|---|
What does this symbol represent?,  | a female with the trait being studied |
What does this symbol represent?,  | a male with the trait being studied |
What does this symbol represent?,  | a female without the trait being studied |
What does this symbol represent?,  | a female who has died because of the trait being studied |
What does this symbol represent?,  | a male without the trait being studied |
What does this symbol represent?,  | a male who has died because of the trait being studied |
What is the relationship between these individuals?,  | They are a mating pair/parents. |
What is the relationship between these individuals?,  | They are siblings/brother and sister. |
What does this symbol represent?,  | a female who is heterozygous for the trait being studied |
What does this symbol represent?,  | a male who is heterozygous for the trait being studied |
What is the relationship between individuals II-1 and II-2?,  | II-1 and II-2 are parent and offspring/father and son. |
| What does the line through II-3 indicate?, | II-3 died because of the trait. |
How many individuals are in the 2nd generation of this pedigree?,  | There are 4 individuals in generation II. |
| What is the relationship between individuals III-1 and III-2?, | III-1 and III-2 are brothers/siblings. |
| The pattern of inheritance shown in this pedigree is typical for what type of trait?, | The pattern is typical for a recessive trait. |
| What is the relationsip between individuals II-3 and II-4?, | II-3 and II-4 are siblings/brother and sister. |
| What is the relationship between individuals I-2 and II-2?, | I-2 and II-2 are parent and offspring/mother and son. |
| How many generations are shown on this pedigree?, | 3 generations are shown. |
| Which individual is a female affected by the trait of interest?, | I-2 is the affected female. |
| Which individual is a male affected by the trail of interest?, | III-2 is the affected male. |
| How many individuals in generation II are heterozygous?, | All 4 individuals in the 2nd generation are heterozygous. |
| How many individuals in generation I are heterozygous?, | There are no heterozygous individuals in the 1st generation. |
| How many of the individuals in generation II are siblings?, | There are 3 siblings in the 2nd generation. |
| What is the relationship between individual I-1 and II-2?, | I-1 an II-2 are a mating pair/parents. |
