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

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p