What are three ways that genes can be inserted into plants?
What will be an ideal response?
Agrobacterium, biolistics (particle bombardment), and electroporation.
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Figure 20-05
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The circuit in the accompanying figure shows a phototransistor used to turn on a relay coil. What is the difference when the phototransistor is in the presence of darkness versus light?
What will be an ideal response?
The electrical energy supplied to an electrical circuit is called ____________________, and it is measured in volts.
Fill in the blank(s) with the appropriate word(s).
If excess carbon monoxide is present in a building heated by a gas furnace, it is likely a sign of _____
a. incomplete combustion b. complete combustion c. a contaminated fuel supply d. too much oxygen
List six indoor air pollutants.
What will be an ideal response?