Some Extreme Halophiles Maintain High Internal Concentrations of Potassium to Avoid

Multiple Choice

Some extreme halophiles maintain high internal concentrations of potassium to avoid osmotic shock.What does halophilic bacterial DNA possess that prevents damage from potassium?

A) A novel nucleotide..
B) Their DNA is single stranded instead of double stranded.
C) A high GC content.
D) The DNA is enclosed inside a protective membrane sac.
E) The DNA is protected by high concentrations of magnesium ions.