A)a sequence of three nucleotide bases.
B)a sequence of four nucleotide bases.
C)a section of the ribosomal RNA.
D)the four nucleotide bases on transfer RNA.
E)the gene that directs protein synthesis.

A)phosphate,ribose,adenine,thymine,guanine and cytosine.
B)phosphate,deoxyribose,thymine,adenine,guanine and cytosine.
C)phosphate,ribose,adenine,uracil,guanine and cytosine.
D)phosphate,deoxyribose,adenine,uracil,guanine and cytosine.
E)none of the above.

A)the sugar in DNA is deoxyribose.
B)the four nucleotides in DNA and RNA are completely different.
C)DNA has more than one function in the cell.
D)DNA carries genetic information but RNA does not.
E)DNA is single stranded,whereas RNA is double stranded.