Question

Which of the following is/are correct statement(s)?
a) In nucleic acids, the nucleotide units are linked by hydrogen bonds
b) Nucleic acids control heredity at molecular level
c) DNA is a dinucleotide and RNA is oligo-nucleotide

• A. all
• B. a, c
• C. b only
• D. a only

Answer 1

Answer: (C)

b only

In nucleic acids, the nucleotide units linked by phosphate ester linkages. Hence, the statement a is incorrect.
Nucleic acids control heredity at molecular level. DNA is the repository of the heredity information.
Thus, the statement b is correct.
DNA and RNA are polynucleotides. Thus, the statement c is incorrect.