1: for the following structural characteristic decide if it is a characteristic of dna, a characteristic of rna, a characteristic of both dna and rna, or a characteristic of neither dna nor rna it contains ribose as a sugar unit.

a; neither dna nor rna

b: rna

c: both dna and rna

d: dna

2: how does dna molecure produce copies of itself

a: translation

b: replication

c; transcripton

d: expression

3: what is the first step in replication?

a: correcting, mutations

b: forming the replication fork

c: unwinding the double helix

d: adding complementary base pairs