Which of the Following Groups Accounts for the Vast Majority

question 84

Multiple Choice

Which of the following groups accounts for the vast majority of new HIV infections among all African American men?

• A) those who have sex with men
• B) those who have heterosexual intercourse
• C) those who use intravenous drugs
• D) those who have undergone blood transfusion

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Definitions:

Quartet

In NMR spectroscopy, a signal that is split into four peaks, indicating an atom's hydrogen atoms are coupled to three equivalent neighboring hydrogens.

Doublet

A pattern in NMR spectroscopy indicating two adjacent protons that are not equivalent, leading to two closely spaced signals.

IR

Infrared spectroscopy, a technique used for identifying organic compounds through their unique absorption of infrared light.

NMR Data

Information obtained from nuclear magnetic resonance spectroscopy that provides details about the structure of molecules based on their magnetic properties.