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For one, without genetic variation, a species is more likely to face significant danger from disease. In humans there are some diseases that affect a few races more than others, but because of genetic variations, our species as a whole is more likely to adapt to new diseases and survive rather than if everybody had the same predisposition toward a disease.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe process of evolution can only happen if there is genetic difference in a given population. This is because evolution does not create genetic variation, but instead selects from genetic variation that is already present in the given population that is subjected to environmental factors that suggest a need for change. Without genetic variation, life would have zero adaptability beyond its current state of being.
Wiki User
∙ 12y agoWithout variation, shorter/taller, faster/slower, smarter/not so smart, what would natural selection select from? Those organisms that are fitted best to the immediate environment will survive, and more importantly, have greater reproductive success so that the traits that caused their greater reproductive success are passed on to progeny who now change the allele frequency of the population over time; the definition of evolution.
Wiki User
∙ 10y agoyes, that is what provides differences for natural selection to select between.
Wiki User
∙ 9y agoIt's not just important for evolution: its the definition of evolution. That is what evolution is and does.
Wiki User
∙ 12y agor655fyt
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What is the central force driving evolution?
Reproductive variation is central to evolution. All else in evolutionary theory follows directly or indirectly from the fact that organisms reproduce with variation.
How does genetic variation and mutations relate to each other?
mutation brings about variation which is the basis of evolution and the two types of variation are heritable and non-heritable
When is variation most important in evolution?
When the immediate environment changes and stress is put on organisms. Then those who have the variation that will become beneficial in this environment will be reproductively more successful.
What would happen if there was zero variation between all of the organisms on earth?
Evolution cannot occur.
The mechanism by which evolution occurs is called?
AnswerNatural selection is the mechanism put forward by Darwin as one of the two essential mechanisms for evolution, the other being random mutation (which Darwin described as inheritable variation, not knowing about genes at the time).The modern evolutionary synthesis includes genetic mutations as the mechanism which provides variations upon which natural selection can act.
How is variation related to evolution?
The more variation there is in a group of specimens, the more evolution can occur between them.
What is heritable variation?
Heritable variation is the variation in characteristics caused by genetic factors.
What is the relationship between evolution and genetics?
mutation brings about variation which is the basis of evolution and the two types of variation are heritable and non-heritable
What must happen in order for evolution to exist?
Without heredity what use would there be to selection and why evolution? Just take beneficial mutations in the germ line for example. No heredity and nothing to enter the populations gene pool and no evolution. No heredity and there would be no variation in populations and the first environmental challenge would carry your population to extinction.
What is variation among members of the same species called?
Intraspecific variation
How is variation related to?
The more variation there is in a group of specimens, the more evolution can occur between them.
What scriptures are there about evolution?
Religious scriptures about Darwinian evolution by variation and selection? None that I am aware of.
What will happen if you have variation differential reproduction and heredity?
Evolution
How does meiosis aid in evolution?
contributes to genetic variation.
What is the central force driving evolution?
Reproductive variation is central to evolution. All else in evolutionary theory follows directly or indirectly from the fact that organisms reproduce with variation.
Does the environment dictate only the direction and extent of evolution?
The environment is the ' natural selector ' of all variation. This is evolution.
What is the necessary conditions for evolution to occur?
Variation must exist.
