DNA and RNA are structurally similar but also have some notable differences. RNA has uracil in place of thymine as one of its bases, uses ribose in place of deoxyribose, and
Question 4 options:


A)
can't form base pairs.


B)
has a different phosphate group in its backbone.


C)
is a polymer of nucleotides and amines.


D)
often exists as a single-stranded molecul