DNA, RNA & Protein Synthesis

1. What are the three parts that make up a nucleotide?

• DNA
• RNA
• Sugar
• Phosphate
• Base

2. How many nitrogen bases are there in DNA?

• 1
• 3
• 4

3. How many nitrogen bases are there in RNA?

• 1
• 3
• 4

4. Which base from RNA replaces thymine (T) from DNA?

• Uracil
• Cytosine
• Guanine

5. A nucleotide consists of each of the following except

• sugar
• phosphate
• gene
• nitrogen base

6. In the ladder-like model of DNA, the uprights consist of

• nucleotides
• sugar and phosphate groups
• ATP

7. After replication, each new double strand of DNA, compared to the original strand is

• different
• identical
• sometimes different and sometimes identical

8. If one strand of DNA has the nitrogen bases TATGCG, the other strand has the bases

• TATGCG
• ATACGC
• CGCATT

9. RNA contains the nitrogen base

• uracil
• thymine

10. The sugar present in RNA is

• ribose
• deoxyribose