EVOLUTION
EVOLUTION OF A POPULATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Bald Eagles are hunted until near extinction, population recovers.
|
|
|
A bunch of seeds are blown to an island and populate that island.
|
|
|
Red fox pups are more likely to survive in a snowy environment if they are born white.
|
|
|
Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
|
Detailed explanation-1: -The new population is genetically different from the parent populations. For example: Pitcairn island is a group of volcanic islands. The calamities result in the development of the different human population on this island. This is an example of Founder’s effect.
Detailed explanation-2: -Explanation: A smaller group being separated permanently from a larger population is a classic example of the founder effect. These 500 members likely have far less genetic diversity than the larger population, so the subsequent population that develops will only contain alleles found in these 500 members.
Detailed explanation-3: -The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most individuals and leaving behind a small, random assortment of survivors.
Detailed explanation-4: -gene pool. Q. A change in the genetic composition of a population as a result of descending from a small number of colonizing individuals is called: founder effect. bottleneck.