Final answer:
The four nucleotides that support the RNA World Hypothesis are Adenine, Guanine, Cytosine, and Uracil.
Step-by-step explanation:
The four nucleotides that support the RNA World Hypothesis are Adenine, Guanine, Cytosine, and Uracil.
DNA contains four nitrogen bases - adenine, guanine, cytosine, and thymine. RNA also has four nitrogen bases - adenine, guanine, cytosine, and uracil. In RNA, thymine is replaced with uracil.
Adenine, guanine, cytosine, and uracil are the four nucleotides that form the foundation of RNA, supporting the RNA World Hypothesis.