E Coli Cells Grown on ¹⁵N Medium Are Transferred to ¹⁴N

question 56

Multiple Choice

E. coli cells grown on ¹⁵N medium are transferred to ¹⁴N medium and allowed to grow for two more generations (two rounds of DNA replication) . DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment?

• A) one high-density and one low-density band
• B) one intermediate-density band
• C) one high-density and one intermediate-density band
• D) one low-density and one intermediate-density band

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Definitions:

Big Five Model

A personality framework identifying five core traits: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Extraversion

A personality trait characterized by outgoingness, high energy, and positive emotions; individuals tend to seek stimulation and enjoy social interactions.

Conscientiousness

A personality trait characterized by organization, dependability, and a strong sense of duty.

Trait Theories

Theoretical views stressing that personality consists of broad, enduring dispositions (traits) that tend to lead to characteristic responses.