Mendelian Inheritance of Human Traits Quiz

What is a pedigree?

• C. A visual representation of rare types of genetic disorders

• A. A type of flower that contains a visual representation of hypoallergenic traits

• B. A visual representation of genetic inheritance used by geneticists to map genetic traits

• D. A type of genetic mutation, specifically one that can be visually represented by its genetic traits

What symbols represent males and females in a pedigree?

• D. Males - stars, Females - triangles

• B. Males - squares, Females - circles

• A. Males - circles, Females - squares

• C. Males - triangles, Females - stars

Which alleles cause genetic disorders such as PKU?

• D. Incomplete dominant

• C. Co-dominant

• B. Recessive

• A. Dominant

What is a carrier?

• A. A type of vehicle

• D. A type of genetic mutation

• C. An individual who has a recessive allele for a specific trait

• B. An individual who has a dominant allele for a specific trait

What is the pattern of heredity for Huntington's disease?

• A. Recessive

• B. Dominant

• C. Co-dominant

• D. Incomplete dominant

What type of heredity is exemplified by cleft chin, widow's peak hairline, freely hanging earlobes, almond-shaped eyes, and thick lips?

• D. Incomplete dominant

• C. Co-dominant

• B. Dominant

• A. Recessive

What is the purpose of studying a family pedigree?

• C. To see if there is a risk of passing along a genetic disease

• A. To learn about the family's history

• D. To identify the family's wealth

• B. To predict the future of the family

What does a pedigree use to identify males and females in a certain family that carry the genetic trait being studied?

• A. Set of numbers

• B. Set of letters

• C. Set of symbols

• D. Set of shapes

What is the probability of an individual being a carrier if one of their parents is a carrier of a recessive allele?

• B. One-in-two chance

• D. One-in-five chance

• A. One-in-four chance

• C. One-in-three chance

What is the purpose of a Punnett square in the context of genetic inheritance?

• A. To predict the future of an individual

• B. To determine the gender of an individual

• D. To identify the family's wealth

• C. To calculate the probability of offspring inheriting certain traits