Pedigree

Front

What is a Pedigree?

Back

A diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

Front

What does a filled square represent in a pedigree chart?

Back

An affected male.

Front

What does an open circle represent in a pedigree chart?

Back

A not affected female.

Front

How do you determine the number of affected individuals in a pedigree?

Back

Count the filled symbols representing affected individuals.

Front

What is the genotype for an individual with a recessive trait?

Back

It is represented as 'gg'.

Front

What does a filled circle represent in a pedigree chart?

Back

An affected female.

Front

What is the purpose of a pedigree chart?

Back

To track the inheritance of traits across generations.

Front

What does a horizontal line connecting a circle and square represent?

Back

A mating between a male and female.

Front

What does a vertical line connecting a square or circle to another shape represent?

Back

The offspring of the individuals connected by the horizontal line.

Front

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

Back

They represent generations, with I being the first generation.