Examine the given structural formula that consists of an adenine molecule bonded to a five-carbon sugar molecule. Which of the following describes the components of this substance?
A) purine base and deoxyribose
B) purine base and ribose
C) pyrimidine base and deoxyribose
D) pyrimidine base and ribose

Question

Examine the given structural formula that consists of an adenine molecule bonded to a five-carbon sugar molecule.  Which of the following describes the components of this substance?
A) purine base and deoxyribose 
B) purine base and ribose 
C) pyrimidine base and deoxyribose 
D) pyrimidine base and ribose

Quizplus · Accepted Answer

The structural formula shows an adenine molecule, which is a purine base, bonded to a five-carbon sugar molecule. The only five-carbon sugar molecule found in DNA and RNA is ribose, so the substance is a purine base (adenine) and ribose.

Examine the Given Structural Formula That Consists of an Adenine