Bacterial Cells Have Only One DNA Molecule, Which Is Double

question 55

Multiple Choice

Bacterial cells have only one DNA molecule, which is double stranded and is replicated in essentially the same fashion as in eukaryotes. Imagine that, following the techniques of other scientists studying DNA, you created a bacterial cell that contains only radioactive nitrogen in its DNA. You then place the cell in a culture medium containing only "regular" (nonradioactive) nitrogen, Based on this scenario and your knowledge of DNA structure and replication, how many cells will contain some DNA with radioactive nitrogen after four rounds of cell replication?

• A)one
• B)two
• C)four
• D)eight
• E)16

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Definitions:

Interpersonal Intelligence

A type of intelligence that involves the ability to understand and interact effectively with others.

Contextual Intelligence

The ability to understand and appropriately apply knowledge taking into account the situational context, including cultural and environmental factors.

Mnemonics

Memory aids, especially those techniques that use vivid imagery and organizational strategies to enhance recall.

Pragmatics

(1) The practical knowledge needed to use language for communicative purposes. (2) The social context of language.