All GRE Subject Test: Chemistry Resources
Example Questions
Example Question #221 : Gre Subject Test: Chemistry
Of the following groups of nitrogenous bases, which does not contain a purine?
Possible Answers:
Adenine, guanine, thymine
Thymine, adenine, cytosine
Cytosine, thymine, uracil
Cytosine, thymine, guanine
Guanine, uracil, adenine
Correct answer:
Cytosine, thymine, uracil
Explanation:
We can use the mnemonic "PurAG" to remember that the purines are adenine and guanine. The only choice that does not contain a purine, therefore, is "cytosine, thymine, and uracil." Remember, pyrimidines contain a single ring, while purines have two.
Chisom
Certified Tutor
Certified Tutor
Georgia Southern University, Bachelor of Science, Biochemistry. University of Georgia, Current Grad Student, Pharmacy.
Andrew
Certified Tutor
Certified Tutor
University of South Florida-Main Campus, Bachelors, Biomedical Sciences. New York Medical College, PHD, Doctor of Medicine.
All GRE Subject Test: Chemistry Resources
Popular Subjects
ISEE Tutors in Chicago, ACT Tutors in Denver, Biology Tutors in Los Angeles, Computer Science Tutors in Boston, Math Tutors in Dallas Fort Worth, Biology Tutors in Philadelphia, LSAT Tutors in Chicago, Chemistry Tutors in San Diego, Biology Tutors in Boston, GMAT Tutors in Chicago
Popular Courses & Classes
ISEE Courses & Classes in Phoenix, ISEE Courses & Classes in San Francisco-Bay Area, GRE Courses & Classes in Chicago, ISEE Courses & Classes in Atlanta, LSAT Courses & Classes in San Francisco-Bay Area, ACT Courses & Classes in Denver, MCAT Courses & Classes in New York City, LSAT Courses & Classes in Dallas Fort Worth, Spanish Courses & Classes in Los Angeles, ACT Courses & Classes in Seattle
Popular Test Prep
ACT Test Prep in San Francisco-Bay Area, LSAT Test Prep in Seattle, GRE Test Prep in Phoenix, ISEE Test Prep in New York City, ACT Test Prep in Seattle, ACT Test Prep in Washington DC, ISEE Test Prep in Atlanta, ISEE Test Prep in San Francisco-Bay Area, ISEE Test Prep in Seattle, LSAT Test Prep in Washington DC
