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:

Constructivist Therapies

Approaches to psychotherapy that emphasize the individual's capacity to construct their sense of reality, focusing on personal meaning and the process of discovery through therapeutic dialogue.

Evidence-Based Practice

The integration of clinical expertise, patient values, and the best current research evidence into the decision-making process for patient care.

Clinical Expertise

The skill, knowledge, and judgment that healthcare practitioners acquire through their experience and clinical practice.

Client Values

The personal principles or standards of behavior that are important to a client and are taken into consideration during therapy.