Pedigree Charts

Front

What is a pedigree chart?

Back

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

Front

What does a filled circle represent in a pedigree chart?

Back

A filled circle represents a deceased affected female.

Front

What does a filled square represent in a pedigree chart?

Back

A filled square represents a deceased affected male.

Front

What does an empty circle represent in a pedigree chart?

Back

An empty circle represents an unaffected female.

Front

What does an empty square represent in a pedigree chart?

Back

An empty square represents an unaffected male.

Front

What does a diagonal line through a shape indicate in a pedigree chart?

Back

A diagonal line through a shape indicates that the individual is deceased.

Front

What is the significance of generations in a pedigree chart?

Back

Generations in a pedigree chart show the lineage and help trace the inheritance of traits across different family members.

Front

What is an autosomal dominant trait?

Back

An autosomal dominant trait is a trait that is expressed even if only one copy of the dominant allele is present.

Front

What is an autosomal recessive trait?

Back

An autosomal recessive trait is a trait that is expressed only when two copies of the recessive allele are present.

Tags

NGSS.HS-LS3-2

Front

What is an X-linked trait?

Back

An X-linked trait is a trait associated with a gene located on the X chromosome.