When a Farmer Grows Cotton Containing the Gene for Bt

question 32

Multiple Choice

When a farmer grows cotton containing the gene for Bt toxin,they often leave a strip of non-Bt cotton around the outside of the field for what reason?

• A) because the non-Bt cotton grows better
• B) because the non-Bt cotton does not drive the moths and caterpillars to extinction
• C) to allow the non-Bt and Bt cotton plants to cross pollinate
• D) to allow some rr bollworm caterpillars to survive
• E) to allow some RR bollworm caterpillars to survive and limit selection pressure for resistance

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Definitions:

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited only by the second stimulus is eventually elicited by the first stimulus alone.

Injection Procedure

A medical method involving the delivery of drugs or other substances into the body via a needle and syringe.

Electric Shocks

A sudden discharge of electricity through a part of the body, used experimentally or as a form of punishment in some of the Milgram experiment's protocols.

Classical Conditioning

An education method where two stimuli are steadily associated; the reaction initially comes from the second stimulus but is later directly elicited by the first stimulus alone.