Arna differs from dna in all except which of the following ways?

a. the presence of uracil
b. the 5'-3' orientation of the polynucleotide strand
c. the sugar molecule
d. the number of different functions performed

B. the 5'-3' orientation of the polynucleotide strand .

The complimentary pairing of DNA molecules ensures 5' 3' and 3'[ 5 '  arrangement for correct pairing of purines and pyrimidine (Adenine E with thymine and cytosine with guanine) in opposite direction.  .

RNA only contains five prime and three prime only, but DNA contains both 5'3' and  3'5'.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.