Why Did the Meselson and Stahl Experiment Require Two Rounds

question 51

Short Answer

Why did the Meselson and Stahl experiment require two rounds of replication?

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Definitions:

DSM-IV-TR

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; a manual used by healthcare professionals in the United States and much of the world as the authoritative guide to the diagnosis of mental disorders.

Symptoms

Observable signs or manifestations of a condition or disease, as reported by a patient or observed during a medical examination.

Diagnosis

The identification of the nature and cause of an illness or other problem by examination of the symptoms.

Psychological Disorder

A pattern of behavioral or psychological symptoms that impact multiple areas of life and/or bring significant distress.