The given question is incomplete. The complete question is:
All EXCEPT which of the following statements are evidence that DNA, and not protein, is the genetic material in eukaryotes as well as bacteria
a) UV light is most mutagenic at a wavelength at which DNA and RNA strongly absorb.
b) DNA has four nucleotides.
c) Introduction of a cloned DNA into another organism results in the production of the corresponding protein product.
d) DNA is located only where the primary genetic function is known to occur.
Answer:
b) DNA has four nucleotides.
Explanation:
DNA is a polymer of nucleotides. Each nucleotide has a pentose sugar deoxyribose, a phosphate group, and a nitrogenous base. Nucleotides of DNA may have one of four different nitrogenous bases: adenine, cytosine, guanine and thymine. Accordingly, DNA is made up of four types of nucleotides. These are namely, deoxyadenylate, deoxyguanylate, deoxythymidylate and deoxycytidylate. However, the presence of four types of nucleotides in DNA does not prove its nature as genetic material in prokaryotes and eukaryotes.