Evolution via natural selection occurs when there is phenotypic variety in a population, an environmental change alters selection pressure, individuals with advantageous alleles survive and reproduce, passing these advantages to offspring, and over time altering allele frequencies in the population.
A evolução por seleção natural ocorre quando há variedade fenotípica numa população, uma mudança ambiental altera a pressão seletiva, indivíduos com alelos vantajosos sobrevivem e reproduzem-se, passando essas vantagens para a prole e, ao longo do tempo, alterando a frequência dos alelos na população.
| Front | Explain the process of evolution via natural selection |
|---|---|
| Back | There's a variety of different phenotypes within a population. • An environmental change occurs and as a result of that, the selection pressure changes. • Some individuals possess advantageous alleles which give them a selective advantage and allow them to survive and reproduce. • The advantageous alleles are passed on to their offspring. • Over time, the frequency of alleles in the population changes and this leads to evolution. |
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