Question

Bacillus thuringiensis (Bt) is a bacterium that produces a toxin that kills many insect species. The gene for the toxin was taken from this bacterium and spliced into corn plants, so the corn crop (called Bt-corn) would have a built-in insecticide and would not suffer insect damage. For the past decade, a debate has raged over whether this genetically- engineered corn hurts harmless insects. A Cornell University team ignited this debate with the following experiment. They dusted leaves with pollen from Bt-corn and fed the dusted leaves to the caterpillars of monarch butterflies in the laboratory. About half of the caterpillars died, compared to another group fed non-dusted leaves in which only two percent of the caterpillars died. An appropriate hypothesis for this experiment is: It is not healthy for humans to eat genetically-modified corn. Corn with the Bt gene has pollen that kills all insects. Corn with the Bt gene makes more pollen. Monarch butterfly caterpillars will eat more leaves dusted with Bt pollen than undusted leaves. Pollen from Bt-corn is harmful to monarch butterfly caterpillars.

          Bacillus thuringiensis (Bt) is a bacterium that produces a toxin that kills many insect species. The gene for the toxin
was taken from this bacterium and spliced into corn plants, so the corn crop (called Bt-corn) would have a built-in
insecticide and would not suffer insect damage. For the past decade, a debate has raged over whether this genetically-
engineered corn hurts harmless insects. A Cornell University team ignited this debate with the following experiment.
They dusted leaves with pollen from Bt-corn and fed the dusted leaves to the caterpillars of monarch butterflies in the
laboratory. About half of the caterpillars died, compared to another group fed non-dusted leaves in which only two
percent of the caterpillars died.
An appropriate hypothesis for this experiment is:
It is not healthy for humans to eat genetically-modified corn.
Corn with the Bt gene has pollen that kills all insects.
Corn with the Bt gene makes more pollen.
Monarch butterfly caterpillars will eat more leaves dusted with Bt pollen than undusted leaves.
Pollen from Bt-corn is harmful to monarch butterfly caterpillars.

Bacillus thuringiensis (Bt) is a bacterium that produces a toxin that kills many insect species. The gene for the toxin
was taken from this bacterium and spliced into corn plants, so the corn crop (called Bt-corn) would have a built-in
insecticide and would not suffer insect damage. For the past decade, a debate has raged over whether this genetically-
engineered corn hurts harmless insects. A Cornell University team ignited this debate with the following experiment.
They dusted leaves with pollen from Bt-corn and fed the dusted leaves to the caterpillars of monarch butterflies in the
laboratory. About half of the caterpillars died, compared to another group fed non-dusted leaves in which only two
percent of the caterpillars died.
An appropriate hypothesis for this experiment is:
It is not healthy for humans to eat genetically-modified corn.
Corn with the Bt gene has pollen that kills all insects.
Corn with the Bt gene makes more pollen.
Monarch butterfly caterpillars will eat more leaves dusted with Bt pollen than undusted leaves.
Pollen from Bt-corn is harmful to monarch butterfly caterpillars.

Added by Travis C.

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