Question

which of the following statements about dna is false? dna is a polymer. the dna strands are joined by sulfide bonds from the complementary nitrogen base pairs. dna is a nucleic acid. dna forms a double helix. dna is the primary information molecule of life.

Explanation:

• DNA is a polymer (composed of nucleotide monomers), so this is true.
• DNA is a nucleic acid (type of macromolecule), so this is true.
• DNA forms a double helix structure, so this is true.
• DNA is the primary information - carrying molecule of life, so this is true.
• DNA strands are joined by hydrogen bonds (not sulfide bonds) between complementary nitrogen - base pairs (A - T, G - C). So the statement "The DNA strands are joined by sulfide bonds from the complementary nitrogen base pairs" is false.

Answer:

The DNA strands are joined by sulfide bonds from the complementary nitrogen base pairs.