Label the Following Pair of Compounds As

question 5

Multiple Choice

Label the following pair of compounds as:

• A) identical
• B) constitutional isomers
• C) stereoisomers
• D) unrelated

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Definitions:

Mechanical Isolation

A prezygotic reproductive isolating mechanism in which fusion of the gametes of two species is prevented by morphological or anatomical differences.

Sexual Isolation

A prezygotic barrier where different species are unable to mate successfully due to behavioral, physiological, or environmental differences.

Behavioral Isolation

A prezygotic reproductive isolating mechanism in which reproduction between similar species is prevented because each group exhibits its own characteristic courtship behavior; also called sexual isolation.

Gametic Isolation

A prezygotic reproductive isolating mechanism in which sexual reproduction between two closely related species cannot occur because of chemical differences in the gametes.