Concordance Refers to

question 20

Multiple Choice

Concordance refers to

• A)percentage of monozygotic twin pairs in which neither express the trait.
• B)percentage of monozygotic twin pairs in which both express the trait.
• C)percentage of dizygotic twin pairs in which both express the trait.
• D)percentage of twin pairs in which both express a trait among pairs in which at least one twin has the trait.

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Definitions:

Catalyst

A material that accelerates a chemical reaction's speed without any lasting alteration to its own chemical structure.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid, or gas) as the reactants, facilitating the reaction uniformly throughout the mixture.

Heterogeneous Catalyst

A catalyst that exists in a different phase (solid, liquid, or gas) than the reactants in a chemical reaction, facilitating the reaction without undergoing permanent change.

Heterogeneous Catalysts

Catalysts that exist in a different phase than the reactants in a chemical reaction, facilitating the reaction without being consumed.