Which of the following best defines a gene pool?


AThe sum of all genetic traits in a population's individuals at a given time
BAny movement of genes from one population to another
CAny movement of organisms from one environment to another
DThe random change in the frequency of an allele in a population

Verified Answer :

Final answer:

A gene pool is the total sum of genetic traits in a population at a specific time, encompassing all alleles present. This genetic diversity influences population adaptability. Other definitions provided do not accurately describe this concept.


Explanation:

Definition of Gene Pool


A gene pool is defined as the sum of all genetic traits in a population's individuals at a given time. This term encompasses all the alleles (versions of a gene) present in a specific population. The genetic diversity found within a gene pool can significantly influence the adaptability and viability of the population.


To illustrate, consider a population of rabbits. If some rabbits have a gene for brown fur and others have a gene for white fur, the gene pool of that rabbit population includes both alleles for fur color. This diversity is crucial for the population's resilience to environmental changes and diseases.


In contrast, the other options listed do not accurately describe a gene pool:


  • Movement of genes between populations relates to gene flow, not the gene pool itself.

  • Movement of organisms between environments pertains to population ecology.

  • Random changes in allele frequency refer to genetic drift, another concept distinct from a gene pool.


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