Consider the following types of compounds: (i) amino acid (ii) nitrogen-containing organic base (iii) phosphoric acid (iv) five-carbon sugar

Consider the following types of compounds: (i) amino acid (ii) nitrogen-containing organic base (iii) phosphoric acid (iv) five-carbon sugar

Consider the following types of compounds:


(i) amino acid
(ii) nitrogen-containing organic base
(iii) phosphoric acid
(iv) five-carbon sugar


From which of the above compounds are the monomers of nucleic acids, called nucleotides, formed?



  1. none
  2. (ii) and (iv)
  3. all
  4. (ii), (iii), and (iv)
  5. (i) and (ii) (ii)


Answer: (iii), and (iv)