Use the figure to answer the following question.
A space probe returns with a culture of a microorganism found on a distant planet. Analysis shows that it is a carbon-based life-form that has DNA. You grow the cells in ¹⁵N medium for several generations and then transfer them to ¹⁴N medium. Which pattern in the figure would you expect if the DNA was replicated in a conservative manner?
Definitions:
Talking Cure
A term often associated with psychoanalytic therapy, emphasizing the importance of verbal expression of conflictual thoughts and feelings.
Sigmund Freud
Known for developing theories about the unconscious mind and the mechanism of repression, Freud's work contributed to the understanding of human psychology and behavior.
Cognitive Therapy
A form of psychotherapy that focuses on changing negative patterns of thought to improve emotional regulation and outcomes.
Mood Disorders
A category of mental health disorders that primarily affect a person's emotional state, causing disturbances in mood that are not consistent with circumstances.
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