Regarding the structure of DNA, the units that form the “uprights” of the DNA ladder and do not attach to the nitrogen bases are
A. deoxyribose molecules.
B. phosphate molecules.
C. ribose molecules.
D. sulfur-containing bases.
Answer:B
Regarding the structure of DNA, the units that form the “uprights” of the DNA ladder and do not attach to the nitrogen bases are
A. deoxyribose molecules. B. phosphate molecules. C. ribose molecules. D. sulfur-containing bases.