Pedigrees

Front

What do the circles represent in a pedigree chart?

Back

Female

Front

What do the squares represent in a pedigree chart?

Back

Male

Front

How many males are typically represented in a pedigree chart?

Back

Count the squares in the chart.

Front

In a pedigree chart, how do you determine the number of children from a couple?

Back

Count the lines connecting the parents to their offspring.

Front

What is a pedigree chart used for?

Back

To track the inheritance of traits across generations.

Front

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

Back

The individual expresses the trait being studied.

Front

What is the difference between a dominant and recessive allele?

Back

A dominant allele masks the effect of a recessive allele in the phenotype.

Front

When the genotype consists of a dominant and a recessive allele, the phenotype will be like the ______________ allele.

Back

dominant

Front

What is the purpose of using symbols in a pedigree chart?

Back

To easily identify males, females, and affected individuals.

Front

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

Back

Carriers are typically represented as unshaded individuals with affected offspring.