(RNA synthesis) Describe the structural differences between the nucleotides of DNA and RNA.
a) RNA nucleotides contain thymine, while DNA nucleotides contain uracil.
b) RNA nucleotides have a ribose sugar, while DNA nucleotides have a deoxyribose sugar.
c) RNA nucleotides have a double-stranded helical structure, while DNA nucleotides have a single-stranded structure.
d) RNA nucleotides have a phosphate group, while DNA nucleotides lack a phosphate group.