Ethambutol (structure shown)is a bacteriostatic antimycobacterial drug prescribed to treat tuberculosis (Mycobacterium tuberculosis). There are _____ chirality centers in ethambutol. 
Definitions:
Gall Flies
Insects that induce the formation of galls (abnormal growths) on plants, which serve as both food source and habitat for the insect's larvae.
Fiddler Crabs
A group of crab species known for their sexually dimorphic claws, where males have one very large claw used for communication and combat.
Heterozygote
An individual having two different alleles of a specific gene, resulting in genetic variation within a population.
Mutations
Changes in the DNA sequence of an organism's genome, which can lead to variations in physical appearance, behavior, or physiology.
Q10: A lactam can be a primary amide.
Q11: Three of the four structures below represent
Q16: The molecule with the condensed formula (CH<sub>3</sub>)<sub>2</sub>CHCH<sub>2</sub>CHO
Q24: In terms of type of compound, the
Q29: Compounds that contain both a hydroxyl group
Q51: What is the structure of 2-methylhexane?<br>A)(CH<sub>3</sub>)<sub>2</sub>CHCH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub><br>B)(CH<sub>3</sub>)<sub>2</sub>CHCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub><br>C)(CH<sub>3</sub>)<sub>3</sub>CCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub><br>D) <img
Q65: At the pH of the aqueous environment
Q69: The compound below is named N-methylcyclopentylamine. <img
Q79: The Fischer projection shown to the right
Q85: How many enantiomers can a chiral stereoisomer