Genetic Engineering Gizmo Assessment
Study Guide Test.
1. The corn plants in the image below have been grown with Lepidoptera sp. larvae, insects that feed on
the corn's cob and leaves. Select the statement that is correct, based on the image. - CORRECT ANSWER
B. A resistance gene was inserted into the plant on the right that makes the corn resistant to
Lepidoptera sp. larvae.
2. In the image below, the corn plant on the left has been grown with Lepidoptera sp. larvae, insects
that feed on the corn's cob and leaves. The corn plant on the right was not exposed to insects. Does this
experiment provide enough information to conclude that the plant on the right is resistant to
Lepidoptera, and why? - CORRECT ANSWER C. No, we cannot conclude whether or not the corn plant on
the right is resistant because it has not been exposed to Lepidoptera.
3. A new pest is found that only feeds on corn plant leaves. Livestock eat corn cobs. Which promoter
would you choose if the modified gene produces toxins that are not safe for livestock to ingest? -
CORRECT ANSWER B. Promoter 2.
4. Coleoptera larvae, insects that eat corn plant roots, are shown in the petri dishes below. Select the
statement that is correct assuming that the following choices were made as represented by the image
below. - CORRECT ANSWER D. The plant will be sensitive and mutated.
5. The white disks in the petri plates are soaked in herbicide, which affects the roots, stalks, leaves, and
cobs of a corn plant. If the transformed plants were grown in the presence of herbicide, which corn
plant would result from the choices shown below? - CORRECT ANSWER C. Corn plant C.
Study Guide Test.
1. The corn plants in the image below have been grown with Lepidoptera sp. larvae, insects that feed on
the corn's cob and leaves. Select the statement that is correct, based on the image. - CORRECT ANSWER
B. A resistance gene was inserted into the plant on the right that makes the corn resistant to
Lepidoptera sp. larvae.
2. In the image below, the corn plant on the left has been grown with Lepidoptera sp. larvae, insects
that feed on the corn's cob and leaves. The corn plant on the right was not exposed to insects. Does this
experiment provide enough information to conclude that the plant on the right is resistant to
Lepidoptera, and why? - CORRECT ANSWER C. No, we cannot conclude whether or not the corn plant on
the right is resistant because it has not been exposed to Lepidoptera.
3. A new pest is found that only feeds on corn plant leaves. Livestock eat corn cobs. Which promoter
would you choose if the modified gene produces toxins that are not safe for livestock to ingest? -
CORRECT ANSWER B. Promoter 2.
4. Coleoptera larvae, insects that eat corn plant roots, are shown in the petri dishes below. Select the
statement that is correct assuming that the following choices were made as represented by the image
below. - CORRECT ANSWER D. The plant will be sensitive and mutated.
5. The white disks in the petri plates are soaked in herbicide, which affects the roots, stalks, leaves, and
cobs of a corn plant. If the transformed plants were grown in the presence of herbicide, which corn
plant would result from the choices shown below? - CORRECT ANSWER C. Corn plant C.
