Natural selection occurs when individuals with certain ... as that genotype increases in frequency (i.e., if there is negative frequency-dependent selection). It is important to note that ...

indicating that they have been under negative selective pressure. However, the findings additionally showed that natural selection has also selected for SNPs that alter amino acids. The ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which ...

Natural selection is a mechanism of evolution ... For example, species change can be caused by neutral mutations that have no negative or positive effect on an individual. Change can also occur by ...