CHEM 210 – BIOCHEMISTRY MODULE 6 EXAM QUESTIONS AND ANSWERS PASS GUARANTEED 100%

CHEM 210 – BIOCHEMISTRY MODULE 6 EXAM QUESTIONS AND ANSWERS PASS GUARANTEED 100% 1. In DNA, adenine always pairs with ________. A. Thymine B. Guanine C. Uracil D. Cytosine Correct Answer: A. Thymine 2. DNA is built from which of the following? A. Nucleosides B. Genes C. Purines D. Nucleotides E. Codons Correct Answer: D. Nucleotides 3. The double helix of DNA is stabilized mainly by ________. A. Ionic bonds B. Covalent bonds C. Ion–dipole bonds D. Hydrogen bonds E. Hydrogen covalent bonds Correct Answer: D. Hydrogen bonds @2025 Exam Material 2 4. Which of the following pentose sugars is a constituent of DNA? A. Xylose B. Ribitol C. 2-deoxyribose D. Arabinose E. Ribose Correct Answer: C. 2-deoxyribose 5. Pyrimidines have ______ ring(s), each containing ______ nitrogen(s), whereas purines have ______ rings, each containing ______ nitrogen(s). A. 1; 2; 2; 2 B. 1; 1; 1; 1 C. 2; 2; 1; 1 D. 2; 1; 1; 2 E. 1; 2; 1; 2 Correct Answer: A. 1; 2; 2; 2 6. Which of the following nucleic acids is responsible for using encoded genetic information to produce proteins? A. Peptide nucleic acid B. Ribonucleic acid C. Ribitol nucleic acid D. Deoxyribonucleic acid E. Glycerol nucleic acid Correct Answer: B. Ribonucleic acid 7. How many hydrogen bonds are made between guanine and its complementary nucleotide? A. 1 B. 2 C. 3 D. 4 E. 5 @2025 Exam Material 3 Correct Answer: C. 3 8. What is the complementary DNA strand to 5'-GCATGAGCC-3'? A. 5'-CTAGTCCGC-3' B. 3'-CGTACTCGG-5' C. 3'-CTAGTCCGC-5' D. 3'-CAGTCAGCT-5' E. 5'-CTGACTACG-3' Correct Answer: B. 3'-CGTACTCGG-5' 9. Which type of RNA carries genetic information from DNA to the ribosome? A. mRNA B. gRNA C. rRNA D. snRNA E. tRNA Correct Answer: A. mRNA 10. What is a co