One difference between dna and rna is that
a) adenine is found only in rna.
b) guanine is found only in dna.
c) cytosine is found only in rna.
d) thymine is found only in dna.

Which of the following is not a defining characteristic of plants?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

What enzyme is most important for dna replication and why?