Concordance Rates for Identical Twins for Major Depressive Disorder and Schizophrenia

question 6

Multiple Choice

Concordance rates for identical twins for major depressive disorder and schizophrenia are about _____. If biological causes were solely responsible for a disorder, the concordance rates would be _____.

• A) 25 percent; 50 percent
• B) 50 percent; 100 percent
• C) 75 percent; 25 percent
• D) 100 percent; 75 percent

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Definitions:

Lithium Diisopropylamide

A strong non-nucleophilic base, represented as LDA, used in organic synthesis for deprotonation reactions.

Methyllithium

A highly reactive organolithium reagent used in organic synthesis to form carbon-carbon bonds.

Pyridine

A basic nitrogen-containing heterocyclic aromatic compound, often used as a solvent and in the synthesis of various organic compounds.

LDA

Lithium diisopropylamide, a strong, non-nucleophilic base used in organic synthesis to deprotonate weak acids.