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Heritable traits that confer some survival or reproductive advantage, or natural selection will cull traits that confer the opposite to survival and reproductive advantage.
So, the individual organisms, or his genes, are selected and these alleles increase in frequency in populations and evolution takes place.
What else can I help you with?
How can genetic drift and gene flow affect natural selection?
Genetic drift can reduce genetic variation within a population, making it harder for natural selection to act upon beneficial traits. Gene flow, on the other hand, can introduce new genetic variation into a population, potentially increasing the pool of traits for natural selection to act upon. Overall, both genetic drift and gene flow can influence the effectiveness of natural selection by altering the genetic composition of populations.
How do modern scientists explain the appearance of new traits within a species?
Modern scientists explain the appearance of new traits within a species through genetic mutations. Mutations in an organism's DNA can lead to changes in traits, which may be beneficial, neutral, or harmful. Over time, natural selection can act on these new traits, determining whether they become more or less common in a population.
Does natural selection act on individuals or on a broader scale within a population?
Natural selection acts on individuals within a population. It is the process by which certain traits that are advantageous for survival and reproduction become more common in a population over time.
Why is genetic variation important for natural selection to drive evolution?
Genetic variation is important for natural selection to drive evolution because it provides the raw material for natural selection to act upon. Without genetic variation, there would be no diversity in traits for natural selection to favor or eliminate, and evolution would not be possible.
Does natural selection require genetic variation in order to drive the process of evolution?
Yes, natural selection requires genetic variation to drive the process of evolution. Genetic variation provides the raw material for natural selection to act upon, leading to changes in the traits of a population over time.
Can natural selection act on a population with no variation traits?
The trait is the same for all organisms.
What requires natural selection to occur in a population?
Natural selection requires variation in traits within a population, heritability of those traits, and differential reproductive success based on those traits. Without these components, natural selection cannot act on a population.
How does tetracycline act as an agent for natural selction?
as the bacteria it was exposed to, eventually one strain mutated and this lead to a resistance to the antibiotic, and therefore the bacteria with the mutation was able to reproduce, where as the other bacteria would have been killed off by the antibiotic. Thus natural selection is achieved, yipee!(not for us)
What is natural selection and what level of organization does it act on?
Natural selection is a process where individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to the next generation. It acts on the level of individual organisms within a population.
What are variation traits?
Variation traits are characteristics that can differ among individuals of the same species, such as height, eye color, or blood type. These traits are influenced by genetics and environmental factors, contributing to the diversity seen within a population. Variation traits play a key role in evolution by providing the raw material for natural selection to act upon.
Natural selection can only act on traits?
Yes, traits that are phenotypical in nature and confer some survival and reproductive advantage, then the alleles that gave rise to these traits become more frequent in the populations gene pool and evolution takes place. So, natural selection is acting on genes in the individuals and population are evolving from this process.
Is inheritance a requirement for natural selection?
Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.
List the three conditions that are necessary and sufficient for natural selection to act on a?
A beneficial mutation leading to variability in a population and the heritability of those beneficial traits.
How can genetic drift and gene flow affect natural selection?
Genetic drift can reduce genetic variation within a population, making it harder for natural selection to act upon beneficial traits. Gene flow, on the other hand, can introduce new genetic variation into a population, potentially increasing the pool of traits for natural selection to act upon. Overall, both genetic drift and gene flow can influence the effectiveness of natural selection by altering the genetic composition of populations.
What do variation and competition have to do with natural selection?
Variation and competition are the basis of natural selection.When a population of organisms has variety (big/small, fast/slower, etc), and there is competition, then some of those traits will assist in winning the competition, and some will not, which will tend to mean the difference between an organism surviving versus not surviving, which in a large population will mean passing the genes for those advantageous traits on, which then means that those traits have been 'selected' for by the natural act of competition, thus 'natural selection'.
How does a monkey act and what are the character traits of a monkey?
how does a snow monkey act
How do modern scientists explain the appearance of new traits within a species?
Modern scientists explain the appearance of new traits within a species through genetic mutations. Mutations in an organism's DNA can lead to changes in traits, which may be beneficial, neutral, or harmful. Over time, natural selection can act on these new traits, determining whether they become more or less common in a population.
