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The given figure shows which evolutionary process and in future for which event it will become important?
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A. Gene frequency, Recombination of gene
B. Gene pool, Mutation
C. Genetic drift, Selection
D. Gene flow, Genetic variation

Answer
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Hint: Evolution is a process that causes changes in a population's genetic material through time. The adaptations of organisms to their changing environments are reflected in evolution, which can result in altered genes, unique features, and new species. Changes in genetic variability and allele frequencies throughout time are required for evolutionary processes.

Complete answer:
Evolution research can be done on a variety of scales. Microevolution is the study of how DNA sequences and allele frequencies change over time inside a species. Mutations, which can bring new alleles into a population, could be to blame for these changes. In addition, gene flow, which occurs when two populations with unique alleles breed, can bring new alleles into a population.
Macroevolution, in contrast to microevolution, reflects large-scale changes at the species level, which are the outcome of a huge number of minor changes on the microevolutionary scale. The evolution of a new species is an example of macroevolution.
The phenomenon of genetic variety transmission between populations is known as gene flow. Gene flow is depicted in the diagram. As a result of migration, allele frequencies vary, resulting in a shift in genetic diversity within populations. As a result, genetic variety will eventually emerge.
'Gene flow, Genetic variety' is hence the proper response. Gene flow within a group can promote genetic diversity, whereas gene flow between genetically distinct populations can minimise genetic disparity.

Note: Gene flow is the transfer of genetic material from one population to another in population genetics. Two populations with equivalent allele frequencies can be regarded as a single effective population if the rate of gene flow is high enough.