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Why does genetic variation increase the chance that some organisms in a population will survive?
In any given population, individuals have different strengths and weaknesses. You many have noticed that some people are less affected by cold or heat than others. Black people in the north can suffer from Rickets. White people in the south can suffer from skin cancer. Some people get sick less often than others. Some people get by on less food than others. Some people run faster than others. At times one of those abilities might be the most important for survival. Our ancestors who ran the fastest would do the best at catching wild animals. Being strong would help kill them. On the other hand, a person with excellent motor skills could make the best tools. The gazelle that survives does not have to be the fastest but the slowest will not outrun the cheetah. The fastest gazelle might run too fast and overheat and get exhausted. He will collapse and a lion will get him. Some people never seem to get sick. They have a good immune system. Still a new pathogen could decimate the population and wipe out such people. Their immune system could not deal with a type of pathogen never met before. If AIDS becomes more contagious, then the world will be repopulated by the people living in that part of Russia near Finland. They can not catch AIDS. A variety of natural and developed abilities helps.
What else can I help you with?
What typeof organisms can increase genetic variation through reproduction?
both plants and animals
Which breeding system reduces genetic variation in a population?
Inbreeding is a breeding system that reduces genetic variation in a population. Inbreeding occurs when closely related individuals mate, leading to an increase in homozygosity and a decrease in genetic diversity within the population. This can result in an increased prevalence of genetic disorders and reduced fitness in the population.
What is genetic variation in natural selection?
Natural selection ' selects ' from among variations. Some organisms are better suited to their immediate environment and survive and out reproduce other organisms. All these organisms are genetically variant. That is the simple connection between natural selection and genetic variation. ( that variation coming about by mutation and recombination )
How does natural selection produce genetic variation within a species?
It's mainly mutations in the DNA and recombination of chromosomes that produce the genetic variation. Natural selection then favors those changes that give rise to greater reproductive success.
Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
What increases genetic variations?
A large population increases genetics variation. Mutation will also increase genetics variation.
Breeders can increase the genetic variation by inducing what?
The introduction of animals into a breeding population that are unrelated will increase genetic variation.
Which procedure can not be used to increase genetic variation?
If a population dwindles, there is low genetic variation and a species may risk extinction.
What typeof organisms can increase genetic variation through reproduction?
both plants and animals
What would decrease genetic variation in a population?
Inbreeding, genetic drift, and natural selection can decrease genetic variation in a population by reducing the number of different alleles present. These processes can lead to a loss of genetic diversity and increase the prevalence of certain genetic traits within the population.
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.
What id genetic variation?
Genetic Variation is a measure of the genetic differences there are within populations or species. For example, a population with many different alleles at a locus may be said to have a lot of genetic variation at that locus. Genetic variation is essential for natural selection to operate since natural selection can only increase or decrease frequency of alleles already in the population
Does natural selection have a tendency to increase or decrease genetic variation within a population?
Natural selection tends to decrease genetic variation within a population by favoring certain traits that are advantageous for survival and reproduction.
What is a source of genetic variation in organisms?
Human recombination is a significant source of genetic variation.
What is an allele and how does it contribute to genetic variation in organisms?
An allele is a variant form of a gene that determines a specific trait. Alleles contribute to genetic variation in organisms by creating different combinations of traits through genetic recombination during reproduction. This variation allows for diversity within a population, which can lead to adaptations and evolution over time.
Which breeding system reduces genetic variation in a population?
Inbreeding is a breeding system that reduces genetic variation in a population. Inbreeding occurs when closely related individuals mate, leading to an increase in homozygosity and a decrease in genetic diversity within the population. This can result in an increased prevalence of genetic disorders and reduced fitness in the population.
What is genetic variation in natural selection?
Natural selection ' selects ' from among variations. Some organisms are better suited to their immediate environment and survive and out reproduce other organisms. All these organisms are genetically variant. That is the simple connection between natural selection and genetic variation. ( that variation coming about by mutation and recombination )
