Understanding Pedigrees and Genetic Traits

What does a pedigree trace?

• The lifespan of an individual

• The inheritance of a particular trait through multiple generations

• The migration patterns of a species

• The diet of a species

Tags

NGSS.HS-LS3-1

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What symbol is used to represent males in a pedigree?

• Circles

• Squares

• Triangles

• Diamonds

What symbol is used to represent females in a pedigree?

• Squares

• Circles

• Triangles

• Diamonds

What is the purpose of a pedigree?

• To illustrate a family tree

• To show genetic inheritance of a trait

• To display family wealth

• To record family history

How is a carrier represented in a pedigree?

• Fully filled square or circle

• Half-filled square or circle

• Empty square or circle

• Triangle

What is the purpose of studying pedigrees in genetics?

• To identify physical traits

• To understand inheritance of recessive disorders

• To calculate genetic distance

• To predict future height

Tags

NGSS.HS-LS3-1

What does a horizontal line between two symbols in a pedigree represent?

• Siblings

• Parents of the offspring

• Grandparents

• Cousins

How are individuals numbered in a pedigree?

• By height

• By weight

• By birth order using Arabic numbers

• By age using Roman numerals

What does a half-filled circle indicate in a pedigree chart?

• Normal female

• Female who expresses the trait

• Female who is a carrier

• Male who expresses the trait

What does a vertical line connecting a circle and a square to another shape represent in a pedigree chart?

• Siblings

• Parents

• Offspring

• Traits