Biology I Chapter 23
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Biology I Chapter 23
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Free Flashcard From Biology I Chapter 23
Question:
You are maintaining a small population of fruit flies in the
laboratory by transferring the flies to a new culture bottle after each
generation. After several generations, you notice that the viability of
the flies has decreased greatly. Recognizing that small population size
is likely to be linked to decreased viability, the best way to reverse
this trend is to A) cross your flies with flies from another lab.B) reduce the number of flies that you transfer at each generation. C) transfer only the largest flies. D) change the temperature at which you rear the flies.E) shock the flies with a brief treatment of heat or cold to make them more hardy.
Answer:
A