Which, if any, of the following statements is false?
A) Most of the inherited changes in our DNA arise because of exposure to extracellular mutagens, including radiation sources and chemical mutagens.
B) Most of the inherited changes in our DNA arise because of unavoidable endogenous errors in cellular mechanisms and harmful effects of certain natural molecules and atoms within our cells.
C) Errors in DNA replication and DNA repair are a major source of mutations in our cells.
D) Significant chemical damage is sustained by DNA because of its proximity to water molecules in our cells.

Question

Quizplus · Accepted Answer

The statement in option A is false. While exposure to extracellular mutagens can certainly cause mutations, most inherited changes in our DNA actually arise from spontaneous mutations that occur during normal cellular processes like DNA replication and repair. This means that option B and C are true, and option D is partly true (since water can cause chemical damage to DNA, but it is not the only factor).

Which, If Any, of the Following Statements Is False