How does traditional plant and animal breeding differ from genetic engineering?
What will be an ideal response?
Genetic engineering causes rapid changes, whereas traditional plant
and animal breeding produces changes over several generations. Genetic
engineering requires expertise in molecular biology and expensive
laboratory equipment, whereas selective breeding requires knowledge of
plant and animal care but not molecular biology. The DNA of a desirable
animal is used to replace the DNA of an unfertilized egg. The egg is fertilized
in a Petri dish allowed by law like the cloning of people. Selective breeding
is not covered by these laws.
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An electrical conductor is an element with ________ electrons in its outer orbit.
A) Less than 2 B) Exactly 4 C) Less than 4 D) More than 4
The text's authors argue that immigration legislation in the 1920s "caused America to sacrifice something of its tradition of freedom and opportunity, as well as much of its color and variety." How do you react to this argument? Do you believe that immigration restrictions instituted were necessary, equitably developed and implemented with respect to the quota levels and exemptions from particular regions of the world, or do you share the critical view of the immigration policy of the 1920s asserted by the text's authors? Offer specific political, economic, and cultural arguments to support your view.
What will be an ideal response?
Synchronous generators are widely used for wind turbines. Explain what advantage they have over an induction generator in this application
What will be an ideal response?
What is the primary way a convector heats a room?
A) By absorbing the cold in the room B) By radiating heat into the space C) Through natural convection along the outer walls D) By releasing microbursts of steam into the room