PORTAGE LEARNING BIOCHEM MODULE 5
EXAM EXAM PREP QUESTIONS AND ANSWERS
2026 PRACTICE SOLUTION VERIFIED RESULTS
◉ guanine.
Answer: In RNA, cytosine always pairs with
◉ uracil.
Answer: In RNA, adenine always pairs with
◉ nucleotides.
Answer: DNA is built from which of the following?
nucleosides
genes
purines
nucleotides
codons
◉ hydrogen bonds.
Answer: The double helix of DNA is stabilized mainly by
, ◉ 2-deoxyribose.
Answer: What pentose sugar is a constituent of DNA?
◉ ribose.
Answer: What pentose sugar is a constituent of RNA?
◉ 1 ring, 2 nitrogens.
Answer: Pyrimidines have ________ ring(s), containing ______
nitrogen(s).
◉ 2 rings, 2 nitrogens.
Answer: Purines have ________ ring(s), (each) containing ______
nitrogen(s).
◉ ribonucleic acid (RNA).
Answer: What nucleic acid is responsible for using the encoded
genetic information to produce of proteins found in living
organisms?
◉ A-T/U
C-G.
Answer: What are the complementary bases?
EXAM EXAM PREP QUESTIONS AND ANSWERS
2026 PRACTICE SOLUTION VERIFIED RESULTS
◉ guanine.
Answer: In RNA, cytosine always pairs with
◉ uracil.
Answer: In RNA, adenine always pairs with
◉ nucleotides.
Answer: DNA is built from which of the following?
nucleosides
genes
purines
nucleotides
codons
◉ hydrogen bonds.
Answer: The double helix of DNA is stabilized mainly by
, ◉ 2-deoxyribose.
Answer: What pentose sugar is a constituent of DNA?
◉ ribose.
Answer: What pentose sugar is a constituent of RNA?
◉ 1 ring, 2 nitrogens.
Answer: Pyrimidines have ________ ring(s), containing ______
nitrogen(s).
◉ 2 rings, 2 nitrogens.
Answer: Purines have ________ ring(s), (each) containing ______
nitrogen(s).
◉ ribonucleic acid (RNA).
Answer: What nucleic acid is responsible for using the encoded
genetic information to produce of proteins found in living
organisms?
◉ A-T/U
C-G.
Answer: What are the complementary bases?