Halloween has just passed and you have a bottle filled with candy. As you can se
ID: 367084 • Letter: H
Question
Halloween has just passed and you have a bottle filled with candy. As you can see, there are three colors of candy in your bottle: red, yellow, and green. The bottle has no cap, and when you turn it over and give the bottle a good shake, ten pieces of candy fall out before the flow stops. Just by chance, the ones that fall out are mostly red, but there are a couple green ones and a yellow one, too. It's not really a representative sample of what's in the bottle, but that's just how things shake out, so to speak.
Your overall population of candy just went through a bottleneck. Now, if those candies could breed, you would rightly expect that the abundance of candy would skew the color array of candy in the growing population for a good long time. That's the bottleneck effect. Select from the example of options below further best describes the bottleneck effect and EXPLAIN.
a. A population of animals that increases quickly after a period of time when it decreases.
b. The bottleneck effect is a sharp reduction of a population's pool because of an environmental, or human-caused, change.
c. The difference between a soda bottle and a beer bottle.
d. A population of animals that increases quickly after a period of time when it decreases.
Explanation / Answer
Answer is b) The bottleneck effect is a sharp reduction of a population's pool because of an environmental, or human-caused, change.
Due to a natural calamity like earthquake,volcano etc. or a human made disaster like deforestation, pollution etc, one kind of population is reduced in size and in future, even though the population rebounds in size, there will be much lesser genetic variation.
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