Pedigree Warm Up

Front

What is a pedigree?

Back

A pedigree is a diagram that shows the genetic relationships among family members and tracks traits across generations.

Front

What does it mean for an individual to be a carrier?

Back

A carrier is an individual who has one copy of a recessive allele that does not manifest in their phenotype but can be passed to offspring.

Front

How many generations can a pedigree typically show?

Back

A pedigree can show multiple generations, often ranging from 2 to 4 or more.

Front

What is the purpose of using a pedigree?

Back

Pedigrees are used to track traits in families and to understand inheritance patterns.

Front

What symbols are commonly used in pedigrees to represent males and females?

Back

Males are represented by squares and females by circles.

Front

What does it mean if a trait is dominant in a pedigree?

Back

If a trait is dominant, it means that only one copy of the allele is needed for the trait to be expressed.

Front

What is the significance of the Roman numerals in a pedigree?

Back

Roman numerals are used to denote generations in a pedigree, with each numeral representing a different generation.

Front

How can you identify siblings in a pedigree?

Back

Siblings are typically connected by a horizontal line that links their parents, and they are represented in the same generation.

Front

What does it indicate if an individual is shaded in a pedigree?

Back

Shaded individuals typically represent those who express a particular trait or condition being studied.

Front

What is the relationship between individuals II-4 and III-2 if II-4 is the father?

Back

II-4 is the father of III-2, making them parent and child.