directional selection उदाहरण वाक्य
उदाहरण वाक्य
- Most mutations within genes are fitness and are extremely important for evolution, since their directional selection leads to adaptive evolution.
- For example, let us take the mathematically straightforward yet biologically improbable case of the rabbits : Suppose directional selection were taking place.
- Directional selection was first described by Charles Darwin in the book " Origin of Species " as a form of natural selection.
- Alternatively, the values of the behavioural traits are not maximized by directional selection, but rather are under the influence of stabilizing selection.
- Averageness has been a result of stabilizing selection whereas facial paedomorphosis or juvenile traits are a result of directional selection ( Wehr, 2001 ).
- The first is directional selection, which is a shift in the average value of a trait over time for example, organisms slowly getting taller.
- Directional selection occurs when an allele has a greater fitness than others, so that it increases in frequency, gaining an increasing share in the population.
- One resolution to the lek paradox involves female preferences and how preference alone does not cause a drastic enough directional selection to diminish the genetic variance in fitness.
- The introduced species often creates a rapid directional selection in the other species within that ecosystem and those species cannot evolve quickly enough to adjust to this new state.
- However, there is no qualitative difference in directional selection on C between stabilizing selection ( i . e . no sexual selection ) and directional selection on T.