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Allele frequency refers to the fraction of individuals with a particular version of a given gene. What effect does natural selection have on the allele frequency of a population?
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What is a selection that eliminates individuals on both ends of the range and favors those in the middle?
One standard deviation.
What is independent values?
sample data drawn from one population is completely unrelated to the selection of sample data from the other population.
Natrural selection happens when an adaptation has been inherited by just a few members of a population. True or False?
true
Did gh hardy and Wilhelm weinberg used algebra and probability to model natural selection?
No, the two of them used algebra and probability to model population biology, not natural selection, however similar the two may be.
What is the best statistical method for choosing an element who has Multiple properties?
The method will depend on what the population comprises. For example, if every element in the population has multiple properties then simply random selection will suffice.
What is a change in the frequency of a particular gene in one direction in a population called?
Directional selection.
When selection causes the frequency of a particular trair to move in one direction?
Directional Selection
Natural selection requires that individuals in a population are?
Natural selection requires that individuals in a population are
How do adaptations connect to evolution?
Adaptive change is the province of natural selection and natural selection is one of the main drivers of evolution. Natural selection selects from the individuals variations in a population of organisms on, basically, reproductive success and this adaption is passed on to progeny which changes the allele frequency in the population which is evolution.
What are the different ways in which individuals with a particular trait may increase in a population?
Individuals with a particular trait may increase in a population through natural selection, genetic drift, gene flow, and mutations. Natural selection favors individuals with advantageous traits, genetic drift leads to random changes in allele frequencies, gene flow introduces new alleles into the population, and mutations create new genetic variation.
What effect does natural selection have on the allele frequency of a population?
In the next generation that trait increases in frequency above the frequency in the current generation.
Selection favors one extreme form of a trait in a population.?
Tends to result in a population whose individuals have extreme traits is what? ----> it is directional selection
What are four forces that can change the frequency of genes in a population?
- natural selection - sexual selection - genetic drift - immigration/emagration
Which evolutionary force decrease the genetic diversity of a population by increasing the population of similar individuals?
stabilizing selection
What is Stabilizing Selection and Distruptive selection?
A type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value.
How does natural selection create a change in population over time?
By favoring one variation of organism over another variation in the same population. These favored individuals ( natural selection selects individual organisms ) leave more descendants, with these traits, who over time become more numerous in the population and the populations allele frequency changes to reflect this. In a word, evolution.
What tends to result in a population whose individuals have extreme traits?
Natural selection can lead to extreme traits in a population if those traits provide a significant advantage in survival or reproduction. Genetic drift can also lead to extreme traits if there are random fluctuations in the frequency of alleles in a population. Additionally, sexual selection can drive the evolution of extreme traits if individuals with those traits are preferred as mates.
