試題詳解

10. Unlike DNA, which typically forms a helical structure, different molecules of RNA can fold into a variety of three-dimensional shapes. This is largely because_________.
(A) RNA contains uracil and uses ribose as the sugar.
(B) RNA bases cannot form hydrogen bonds with each other.
(C) RNA nucleotides use a different chemical linkage between nucleotides compared to DNA.
(D) RNA is single-stranded.