Which of the following biological molecules are composed of monomer units containing a sugar, a phosphate group, and a nitrogen-containing base?
A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic acids
Answer:D
Which of the following biological molecules are composed of monomer units containing a sugar, a phosphate group, and a nitrogen-containing base?
A. Proteins B. Carbohydrates C. Lipids D. Nucleic acids