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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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