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swat32
4 years ago
11

Read each example and identify it with one of the mechanisms that influence gene pools. A zebra migrates to join a different her

d of zebras. Competition for sunlight leads to taller trees. The DNA of a snake changes to make its venom stronger. A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
Biology
2 answers:
tatiyna4 years ago
6 0

Answer: The correct answer for the given mechanisms influencing gene pool are the mechanisms of evolutionary change, which are described as follows-

1) Gene Flow

- It is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-A zebra migrates to join a different herd of zebras.

2) Natural Selection

- A mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-Competition for sunlight leads to taller trees.

3) Mutation

- Permanent change in the nucleotide sequence of DNA ( genetic material) that could have harmful or useful consequences.

-The DNA of a snake changes to make its venom stronger.

4) Genetic Drift - It is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-A grassfire randomly sweeps through a population of buffalo and kills most of the animals.

sdas [7]4 years ago
4 0
1st: Gene Flow
2nd: Natural Selection
3rd: Mutation
4th: Genetic Drift
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What is migration?

Migration is defined as movement of individuals from one place to another in search of employment and livelihood.Some people lives permanently after migration and some returns back to the native place.

Internal migration is the type of migration in which people migrate within state and country.

External migration is the migration to different state and country.

The phenomenon of moving into new place is known as immigration.

Seasonal migration is the migration in which animals or humans migrate in a particular season due to climatic condition.

Therefore,migration of a random few individuals from one population to a new area to establish a new population is an example of founder effect.

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The question is seems to be incomplete the question is may be like that

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