RNA Was First Identified as the Genetic Material of the Tobacco

question 39

Multiple Choice

RNA was first identified as the genetic material of the tobacco mosaic virus (TMV) through an experiment in which:

• A) Protein and nucleic acid were radioactively labeled
• B) Protein, RNA, and DNA were digested using various enzymes
• C) The protein coats and RNA from two distinctive TMV strains were exchanged
• D) RNA underwent CsCl density-dependent centrifugation
• E) None of these

---

Definitions:

Damage

Physical harm caused to something in such a way that it is impaired or its value is diminished.

Good

Describes something as being satisfactory, beneficial, or morally right.

Groin Pull

A strain or injury to the muscles of the inner thigh, often occurring in activities requiring sudden changes in direction or speed.

Ankle Sprain

An injury to the ligaments in the ankle, usually caused by twisting or turning the ankle in an awkward way.