PEDIGREES

In what way will a puppy always be like its parents?

• Be the same color
• Learn the same things
• Have the same body structures
• Live in the same places

What is the study of genes and inheritance known as?

• Genetics

• Chemistry

• Physics

• Astronomy

How many alleles does a person carry for a trait?

• 1

• 2

• 3

• 4

How many alleles does a child get from each parent for a trait?

• 1

• 2

• 3

• 4

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

In a pedigree, which shape represents a male?

• circle

• square

On a pedigree, this symbol represents a ----

• not affected male.

• not affected female.

• affected male.

• affected female.

How many individuals are there in the 3rd generation?

• 1

• 2

• 4

• 6

How are individuals III-2 and II-4 related?

• Brother and sister

• Dad and daughter

• Uncle and niece

• Grandfather and granddaughter

The trait this pedigree traces is recessive because it skips a generation and individuals can be carriers. What is the most likely genotype for person III-3?

• GG

• Gg

• gg