Although DNA Is the Main Hereditary Material in All Life-

Multiple Choice

Although DNA is the main hereditary material in all life- forms, it lacks one important characteristic to make it a candidate for the first life- form. Why have researchers rejected the idea that DNA was found in the first
Life- form?

A) Because it has only four different bases, it does not carry enough information; therefore, it cannot adapt and evolve.
B) The type of sugar found in DNA is much too complicated to have been present early in Earth's history.
C) It is not stable enough to have withstood early Earth's harsh atmosphere.
D) It does not function as a catalyst.