Professor Glossner Proposes That the Heritability of Temperament Is

question 161

Multiple Choice

Professor Glossner proposes that the heritability of temperament is .80.Which of the following statements does Professor Glossner propose?

• A) A large portion of temperament is determined by genetics.
• B) A large portion of temperament is determined by environment.
• C) 80% of temperament is determined by the X chromosome.
• D) 20% of temperament is determined by the X chromosome.

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Definitions:

Test Cross

The genetic cross in which either an F1 individual, or an individual of unknown genotype, is mated to a homozygous recessive individual.

Dominant Phenotype

A genetic trait that is expressed when at least one allele is dominant in an organism's genotype.

Chromosomes

Structures within cells that contain DNA and carry genetic information.

Hemophilia

A hereditary disease in which blood does not clot properly; the forms known as hemophilia A (deficient for clotting factor VIII) and hemophilia B (deficient for clotting factor IX) exhibit an X-linked, recessive inheritance pattern.