BIOLOGY1345 DNA & Protein Synthesis MCQs (26–50) Summer 2026 WGU

DNA & Protein Synthesis MCQs (26–50)
26. Which sugar is found in DNA?
A. Ribose
B. Glucose
C. Deoxyribose
D. Fructose

27. Which sugar is found in RNA?
A. Ribose
B. Deoxyribose
C. Glucose
D. Galactose

28. The three parts of a nucleotide are:
A. Sugar, phosphate, base
B. Sugar, amino acid, base
C. Protein, phosphate, base
D. Sugar, lipid, base

29. Adenine pairs with thymine through:
A. 1 hydrogen bond
B. 2 hydrogen bonds
C. 3 hydrogen bonds
D. 4 hydrogen bonds

30. Cytosine pairs with guanine through:
A. 1 hydrogen bond
B. 2 hydrogen bonds
C. 3 hydrogen bonds
D. 4 hydrogen bonds

31. The enzyme that joins DNA fragments on the lagging strand is:
A. Helicase
B. DNA polymerase
C. Ligase
D. Primase

32. Small sections of DNA synthesized on the lagging strand are called:
A. Codons
B. Exons
C. Okazaki fragments
D. Anticodons

33. Which process produces two identical DNA molecules?
A. Translation
B. Replication
C. Transcription
D. Mutation

34. The genetic code is described as a triplet code because: