Which statement about DNA is false?

Which statement about DNA is false?

• A. DNA stores and transmits genetic information
• B. DNA has a double-helix structure
• C. DNA is packaged into structures called chromosomes
• D. DNA is made of amino acids

Answer: (D)

DNA is a nucleic acid built from nucleotides, not amino acids, and its double-helix shape is what lets it store and reliably transmit genetic information. Each nucleotide has a sugar, a phosphate, and a base, and the bases pair specifically (A with T, C with G), allowing two anti-parallel strands to form the characteristic double helix. This structure supports accurate replication for inheritance and provides the blueprint for making proteins. Storing and transmitting genetic information is correct because the sequence of bases encodes genes and regulatory instructions, which are read and copied when cells divide. The double-helix structure is correct because it describes how the two strands wrap around each other, stabilized by base pairs. DNA being packaged into chromosomes is correct because DNA winds around proteins to form chromatin and condenses into chromosomes during cell division. The statement that DNA is made of amino acids is not correct because amino acids build proteins, whereas DNA is made of nucleotides.

DNA is a nucleic acid built from nucleotides, not amino acids, and its double-helix shape is what lets it store and reliably transmit genetic information. Each nucleotide has a sugar, a phosphate, and a base, and the bases pair specifically (A with T, C with G), allowing two anti-parallel strands to form the characteristic double helix. This structure supports accurate replication for inheritance and provides the blueprint for making proteins.

Storing and transmitting genetic information is correct because the sequence of bases encodes genes and regulatory instructions, which are read and copied when cells divide. The double-helix structure is correct because it describes how the two strands wrap around each other, stabilized by base pairs. DNA being packaged into chromosomes is correct because DNA winds around proteins to form chromatin and condenses into chromosomes during cell division. The statement that DNA is made of amino acids is not correct because amino acids build proteins, whereas DNA is made of nucleotides.