Marcus and J

question 10

Multiple Choice

Marcus and J.J. grew up in the same neighborhood, which has a reputation for poverty and gang violence. Both of their fathers were violent alcoholics, and they experienced periodic homelessness. Marcus carries the low-MAOA gene, while J.J. carries the high-MAOA gene. Which statement about Marcus and J.J. is true?

• A) Both boys are at equal risk for aggression and criminal behavior in adulthood.
• B) Marcus is at greater risk for aggression and criminal behavior in adulthood than J.J.
• C) J.J. is at greater risk for aggression and criminal behavior in adulthood that Marcus.
• D) Neither boy is at-risk for aggression and criminal behavior in adulthood.

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Definitions:

Steroid Hormone

A type of hormone derived from cholesterol that can pass through cellular membranes and is involved in a wide range of bodily functions.

Nucleic Acid

Organic molecules that serve as the blueprint for proteins and, through the actions of proteins, the entire phenotype of a living organism; includes DNA and RNA.

Hydrolysis

A chemical reaction in which water is used to break down the bonds of a particular substance, commonly involving the disassembly of polymers into monomers.

Nucleotides

The building blocks of DNA and RNA, consisting of a nitrogenous base, a sugar (ribose in RNA, deoxyribose in DNA), and one to three phosphate groups.