Essential Biochemistry 3rd Edition By Charlotte W. Pratt – Kathleen Cornely – Test Bank

Essential Biochemistry 3rd Edition By Charlotte W. Pratt – Kathleen Cornely – Test Bank Question type: Multiple Choice 1) Which of the following is a characteristic of Chargaff’s rules? 1. A) A + T = C + G 2. B) A + G = C + T 3. C) A + G = C + U 4. D) all organisms have identical amounts of all four nucleotides 5. E) none of the above Answer: B Difficulty: Medium Section Reference: 3-1 Learning Objective: Describe the structural features of DNA and RNA 2) A base found exclusively in DNA is _____ while _____ is found only in RNA. 1. A) adenine; cytosine 2. B) guanine; thymine 3. C) uracil; adenine 4. D) cytosine; guanine 5. E) thymine; uracil Answer: E Difficulty: Easy Section Reference: 3-1 Learning Objective: Describe the structural features of DNA and RNA 3) The purines found in nucleic acids are _____ and _____. 1. A) adenine; cytosine 2. B) guanine; thymine 3. C) uracil; adenine 4. D) adenine; guanine 5. E) thymine; uracil