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Question

What are the 5 factors that must be true for evolution to not occur?


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Solution

5 factors that must be true for evolution:

Gene flow, genetic drift, mutation, natural selection, and recombination are the five primary causes of evolution.

  1. The interchange of genes between populations and species is referred to as gene flow. Genetic divergence between populations results in gene flow between populations, which can introduce novel features or alleles into a population, culminating in the emergence of a new species.
  2. Genetic drift is described as the random variations in allele frequencies that occur within a population from generation to generation.
  3. When selecting factors are weak or nonexistent, allele frequencies either drift higher or lower, resulting in the removal of certain alleles from the population and the formation of two divergent populations with distinct sets of alleles.
  4. Mutations can take numerous forms, including insertions, deletions, inversions, and so on, and they eventually result in the formation of a new population with different genetic makeup.
  5. Natural selection can be produced by both physical and biological forces.
  6. Recombination is characterized as the interchange of genetic elements between two people, resulting in offspring with completely different characteristics, and is, therefore, another source of evolution.

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