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How do genetic variation and environmental factors work together to cause natural selection?
Wiki User
∙ 11y ago
Organisms (plants, animals, bacteria, etc) that have more traits that are favorable in the environment will live longer and have more opportunities to reproduce and create offspring that share their favorable traits. Organisms with traits unsuitable for the environment will die sooner, and will produce fewer or no offspring. If given enough time in a stable environment, the population will eventually reflect the genes best suited for it, assuming pure natural selection.
Wiki User
∙ 11y ago
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What tends to increase genetic variation in a population?
Genetic variation is the total amount of genetic diversity present within a species or population. The amount of genetic variation in a population will depend on a variety of factors, including the size of the population, the type of reproduction, and environmental influences. The primary way to increase genetic variation in a population is through mutation. Mutations are random changes in the genetic code that can lead to new traits or characteristics. Mutations can be caused by environmental factors, such as exposure to radiation or chemicals, or they can occur spontaneously. Mutations can be beneficial, neutral, or detrimental to the organism, but they do lead to increased genetic variation. Another way to increase genetic variation in a population is through migration. When individuals from different populations mate, they bring with them different alleles from their home population, increasing the genetic diversity of the new population. This is especially important for populations that are geographically isolated, such as island populations. Another factor that can increase genetic variation is sexual selection. This is the process by which individuals select mates based on certain desired traits. This can lead to an increase in the number of different alleles in the population, as individuals with certain traits will be more likely to reproduce. Finally, gene flow is a process that can increase genetic variation in a population. Gene flow is when individuals from one population move to another population and mate with individuals in the new population. This can bring in alleles from the original population, increasing the genetic diversity of the new population. Overall, while mutation, migration, sexual selection, and gene flow are all important factors in increasing genetic variation in a population, it is important to note that genetic variation can also be decreased by inbreeding and genetic drift. Inbreeding is when individuals mate with close relatives, reducing the number of alleles in the population and leading to decreased genetic variation. Genetic drift is when random fluctuations in allele frequencies occur due to a small population size, leading to decreased genetic variation. Therefore, it is important to consider all of these factors when trying to increase genetic variation in a population.
Is Attention Deficit Disorder a genetic disorder?
It appears to be caused by a combination of genetic and environmental factors.
What are the environmental factors affecting the project?
The economic downturn. project management software application. The structure of the organization.
What factors cause accidents composite risk management?
According to the Army CRM (FM 5-19) there are three cause factors: -Human Error -Material Failure/Malfunction -Environmental conditions.
How do genetic and environmental factors work together to promote a child's temperament?
pretty much most of the genetic stuff could includ add and other genetic disabiliteis like that. But most of the things that cause tempermant issues are seeing how the parents behave and following example of kids and adults around them that they look up to.
How genetic variation and environmental factors affect evolution by natural selection?
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How does genetic variation and environmental factors affect evolution by natural selection?
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What factors could be important for a species to evolve by natural selection?
Environmental change and variation :)
How environmental factors contribute to evolution by natural selection.?
Environmental factors ARE evolution by natural selection. The immediate environment is the selector of the organisms that are differentially successful against the immediate environment.
How does genetic variation and environmental factors work together to cause natural selection?
Higher the genetic variation, better luck to deal with wider range of environmental factors hence better luck to pass the sieve of natural selection. ALSO Organisms (plants, animals, bacteria, etc) that have more traits that are favorable in the environment will live longer and have more opportunities to reproduce and create offspring that share their favorable traits. Organisms with traits unsuitable for the environment will die sooner, and will produce fewer or no offspring. If given enough time in a stable environment, the population will eventually reflect the genes best suited for it, assuming pure natural selection.
Evolution by natural selection involves what three factors?
there is variation in traits , differential reproduction and last is heredity
What causes varation in traits?
Genotypic variation is caused by mutation. Phenotypic variation can be caused by mutation, which gives rise to different alleles, or it can be caused by environmental factors.
Why is crossing-over one of the factors that makes natural selection possible?
Crossing-over increases the genetic variation within a population, which is required for natural selection to act upon.
What is the variation within the human population?
Variation within the human population refers to the differences in traits such as height, skin color, and blood type that exist among individuals. This variation is influenced by genetic factors, environmental factors, and interactions between the two. It is what allows humans to adapt to different environments and thrive in diverse conditions.
What causes variation within species?
Variation within species can be caused by genetic mutations, environmental factors, and interactions between genes and the environment. Genetic mutations are changes in the DNA sequence that can create new traits. Environmental factors, such as diet and climate, can also influence variation by selecting for certain traits over others.
What are the types of environmental factors?
Environmental factors that affect Hotels
What are its drawbacks its dangers its environmental factors?
what are its drawbacks, its dangers, its environmental factors
