Question

which sentence describes how a proteins structure relates to dnas structure? a. a proteins structure is based on its anticodons, which is based on the number of codons in the dna that codes for the protein. b. a proteins structure is based on its number of polypeptides, which is based on the number of strands in the dna that codes for the protein. c. a proteins structure is based on its nucleotide sequence, which is based on the amino acid sequence of the dna that codes for the protein. d. a proteins structure is based on the nucleotide sequence of the dna that codes for the protein.

Explanation:

• Option A: Anticodons are on tRNA, not directly determining protein structure based on DNA codon number. Incorrect.
• Option B: Protein structure is not based on the number of DNA strands. Incorrect.
• Option C: DNA's nucleotide sequence (through transcription and translation) determines the amino - acid sequence of a protein. Amino - acid sequence determines protein structure. Correct.
• Option D: Protein structure is based on amino - acid sequence (from DNA nucleotide sequence), not just nucleotide sequence. Incorrect.

Answer:

C. A protein's structure is based on the amino acid sequence of the DNA that codes for the protein.