Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
The nucleic acids, DNA and RNA, are involved in cell replication and protein synthesis.
DNA and RNA are large polynucleotides formed by joining many
mononucleotides together.
Put a cross in the box that completes each of the following statements.
The sugar in a mononucleotide of RNA is
A deoxyribose
B glucose
C ribose
D ribulose