After Mixing a Heat-Killed, Phosphorescent Strain of Bacteria with a Living

question 19

Multiple Choice

After mixing a heat-killed, phosphorescent strain of bacteria with a living nonphosphorescent strain, you discover that some of the living cells are now phosphorescent. Which observations would provide the best evidence that the ability to fluoresce 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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