Pedigree

Front

What is a pedigree?

Back

A pedigree is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors, often used to track inheritance patterns.

Front

What does a filled circle represent in a pedigree chart?

Back

A filled circle represents an affected female.

Front

What does a filled square represent in a pedigree chart?

Back

A filled square represents an affected male.

Front

What does an unfilled circle represent in a pedigree chart?

Back

An unfilled circle represents a not affected female.

Front

What does an unfilled square represent in a pedigree chart?

Back

An unfilled square represents a not affected male.

Front

How are siblings represented in a pedigree chart?

Back

Siblings are represented by connecting lines that branch from a horizontal line connecting their parents.

Front

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

Back

Roman numerals are used to denote generations in a pedigree chart.

Front

What do the horizontal lines between squares and circles represent in a pedigree?

Back

Horizontal lines represent mating or marriage between individuals.

Front

What is the purpose of a pedigree chart?

Back

The purpose of a pedigree chart is to analyze the inheritance of traits and diseases within a family.

Front

How can you identify carriers of a trait in a pedigree chart?

Back

Carriers are often represented by unfilled shapes that have affected offspring.