The tetranucleotide hypothesis stated what?

• A. There were four nucleotides
• B. The four nucleotides were repeated again and again, making up chromosomes
• C. Only one of the four nucleotides is used for genetic storage
• D. Four nucleotide repeats encode for a protein necessary for genetic storage

Answer: (B)

Verified step by step guidance

1. Understand the context of the tetranucleotide hypothesis, which was an early 20th-century idea about the structure of DNA.
2. Recognize that the hypothesis suggested DNA was composed of repeating units of four nucleotides in a fixed sequence.
3. Identify the four nucleotides involved: adenine (A), thymine (T), cytosine (C), and guanine (G).
4. Clarify that the hypothesis implied these nucleotides were repeated in a simple, monotonous pattern, which was later proven incorrect.
5. Acknowledge that the correct understanding of DNA involves a complex sequence of nucleotides, allowing for genetic diversity and information storage.