3. the two ends of a strand of dna are called the
a. codon and the anticodon, based on the order of the deoxyribose sugars and the phosphate groups.
b.5' and the 3' end, based on modifications in the deoxyribose sugar,
c. starting end and the ending end, based on the orientation of the dna within the chromosome
od. sense end and the antisense end, based on the location of the phosphate groups