After Mixing a Heat-Killed, Phosphorescent (Light-Emitting) Strain of Bacteria with a Living

question 16

Multiple Choice

After mixing a heat-killed, phosphorescent (light-emitting) strain of bacteria with a living, nonphosphorescent strain, you discover that some of the living cells are now phosphorescent. Which observation(s) would provide the best evidence that the ability to phosphoresce is a heritable trait?

• A) DNA passed from the heat-killed strain to the living strain.
• B) Protein passed from the heat-killed strain to the living strain.
• C) The phosphorescence in the living strain is especially bright.
• D) Descendants of the living cells are also phosphorescent.
• E) Both DNA and protein passed from the heat-killed strain to the living strain.

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Definitions:

Oceanic Crust

The part of the Earth's crust that underlies the oceans. It is thinner, denser, and younger than the continental crust.

Continental Rift

A linear zone where the Earth's crust and lithosphere are being pulled apart and is characterized by seismic activity and volcanic eruptions.

Eastern Africa

A region of Africa that includes countries along the eastern coast of the continent, known for its diverse cultures, languages, and ecosystems.

Continental Rifting

The process by which a continent stretches and splits along a rift, often leading to the formation of new ocean basins.